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Beyond climate matching:Optimizing selection of Trichogramma parasitoids against the invasive tomato leafminer Tuta absoluta in China 认领 引用
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作者 Yantao Xue Weifeng Wang +7 位作者 Yanhui Lu Cong Huang Xiaoqing Xian Guifen Zhang Wanxue Liu Fanghao Wan Suran Wu Yibo Zhang 《Ecological Frontiers》 CSCD 2026年第1期210-217,共8页
Selecting effective biological control agents(BCAs)is critical for managing invasive pests such as the tomato leafminer,Tuta absoluta,a species that has posed a significant agricultural threat in China since its recen... Selecting effective biological control agents(BCAs)is critical for managing invasive pests such as the tomato leafminer,Tuta absoluta,a species that has posed a significant agricultural threat in China since its recent invasion.Traditional selection methods prioritize climate matching but often overlook intrinsic biocontrol efficacy.This study proposes a novel spatially explicit framework that integrates climatic suitability and performance to determine effective BCAs.Using the CLIMEX model,we projected the climatic suitability of T.absoluta and four Trichogramma parasitoids(T.chilonis,T.dendrolimi,T.ostriniae,and T.pretiosum)across China.Crucially,we incorporated the pest kill rate(km)to construct a Comprehensive Index(CI).Spatial projections derived from this parameter revealed a pronounced redistribution of dominant parasitoid species relative to climate-only predictions.T.ostriniae has emerged as the primary dominant agent across China's agricultural zones,including the North China Plain,Yangtze River Basin,Sichuan Basin,and Xinjiang's risk regions,replacing vast areas previously assigned to other parasitoid species under climate-matching models.Moreover,T.pretiosum remained dominant in subtropical southern China.This study demonstrated that integrating intrinsic biocontrol efficacy with climatic suitability significantly enhances the robustness of BCA selection,addressing critical limitations of climate-exclusive approaches.Our CI framework provides an evidence-based,spatially optimized strategy for the sustainable management of T.absoluta,prioritizing the targeted deployment of Trichogramma species in key agroecological zones.This methodology can be readily adapted to optimize biocontrol programs against globally invasive pests. 展开更多
关键词 Tuta absoluta Trichogramma Biological control Species distribution model Pest kill rate
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短管赤眼蜂Trichogramma pretiosum microRNA鉴定及四环素响应microRNA功能分析 认领 引用
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作者 肖安琪 沈家安 +6 位作者 李迎瑞 吴萌 曹睿 董旭 张海燕 刘聪鹤 李鹏 《应用昆虫学报》 CAS CSCD 北大核心 2026年第4期880-895,共16页
【目的】赤眼蜂是农林害虫的重要卵寄生蜂,感染沃尔巴克氏菌Wolbachia后其生殖方式由两性生殖(Bisexual reproduction)转为孤雌产雌生殖(Thelytoky),四环素(Tetracycline)可以去除赤眼蜂体内的共生菌使孤雌产雌的赤眼蜂恢复两性生殖方... 【目的】赤眼蜂是农林害虫的重要卵寄生蜂,感染沃尔巴克氏菌Wolbachia后其生殖方式由两性生殖(Bisexual reproduction)转为孤雌产雌生殖(Thelytoky),四环素(Tetracycline)可以去除赤眼蜂体内的共生菌使孤雌产雌的赤眼蜂恢复两性生殖方式。本研究旨在探究与短管赤眼蜂Trichogramma pretiosum生殖相关的功能性miRNA及其靶基因。【方法】以2.5 mg/mL盐酸四环素蜂蜜溶液连续饲喂处理短管赤眼蜂孤雌产雌品系3代成蜂,计算寄生率、羽化率和雌性比,利用Illumina平台进行短管赤眼蜂孤雌产雌品系成蜂体内small RNA转录组测序,筛选差异表达基因并进行GO/KEGG/COG分析;利用RT-qPCR检测短管赤眼蜂转录组数据中差异表达的10个基因(novel_miR_124、novel_miR_311、novel_miR_176、novel_miR_99、novel_miR_510、novel_miR_48、novel_miR_96、novel_miR_315、novel_miR_280、novel_miR_92)的表达量。【结果】本研究测定了四环素处理前后短管赤眼蜂的全转录组,获得短管赤眼蜂差异表达microRNA 79个,上调表达67个,下调表达12个,共预测靶基因4129个,其中表达量有差异的基因为1224个。GO分析表明,靶基因参与了转录调控(Regulation of transcription,DNA-templated)、跨膜运输(Transmembrane transport)、催化活性(Catalytic activity)等功能。KEGG分析表明,ECM、神经活性配体-受体相互作用、Mapk以及TGF-beta和Hippo等信号通路可能在短管赤眼蜂感染沃尔巴克氏菌后的孤雌生殖机制调节中发挥关键作用。【结论】本研究表明,novel_miR_280、novel_miR_99、novel_miR_48和novel_miR_311靶基因及信号通路是调控短管赤眼蜂孤雌产雌的关键,并且减数分裂和第一次有丝分裂的异常对其生殖机制的转变起着不可或缺的作用。此外,本研究还为该物种生殖机制改变后的表观遗传研究提供了全面的转录组参考信息。 展开更多
关键词 短管赤眼蜂 microRNA 全转录组 孤雌产雌 生殖机制
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Olfactory Response of Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) to Volatiles Emitted by Mungbean Plants 认领 引用 被引量：3
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作者 BAI Shu-xiong WANG Zhen-ying +1 位作者 HE Kang-lai Im Dae-joon 《Agricultural Sciences in China》 CSCD 2011年第4期560-565,共6页
Intercropping maize with the prostrate variety of mungbean, Vigna radiata （L.） Wilczek which grows flat along the ground can increase parasitism of the eggs of the Asian corn borer, Ostrinia furnacalis （Guenée... Intercropping maize with the prostrate variety of mungbean, Vigna radiata （L.） Wilczek which grows flat along the ground can increase parasitism of the eggs of the Asian corn borer, Ostrinia furnacalis （Guenée）, a crucial insect pest of maize in China, by Trichogramma ostriniae Pang Chen. This study investigated the behavioural responses of T. ostriniae to plant volatiles emitted from whole plants, leaves, and flowers of prostrate and erect varieties of mungbean in a 4-armed olfactometer. Female parasitiods were significantly attracted to the odours from some varieties of prostrate mungbean when the visit duration and the number of visits were considered, but were not attracted to the odours from any erect varieties. The attractive odours were shown to emanate from the leaves, rather than from the flowers of prostrate mungbean plants. These results have implications for the augmentation of Trichogramma parasitoids in bio-control of O. furnacalis and other crop pests. 展开更多
关键词 Trichogramma ostriniae olfactory response Vigna radiata plant volatile
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Main Rice Pests Control with Trichogramma japonicum 认领 引用
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作者 LIU Yang YUAN Qiu-sheng +3 位作者 ZHANG Yu-zhu FANG Bao-hua KUANG Wei ZHU Guo-qi 《Agricultural Science & Technology》 CAS 2018年第1期28-32,共5页
This study used Trichogramma japonicumto to control Chilo suppressalis （Walker） and Cnaphalocrocis medinalis（Guenée）, and tested the effects of different control methods on main rice pests, natural enemies an... This study used Trichogramma japonicumto to control Chilo suppressalis （Walker） and Cnaphalocrocis medinalis（Guenée）, and tested the effects of different control methods on main rice pests, natural enemies and rice yield. The results revealed that the parasitism of Trichogramma japonicum in the eggs of Chilo suppressalis （Walker） and Cnaphalocrocis medinalis （Guenée） reached 60.3% and 57.1%, and the control efficacy was up to 70.8 % and 91.99%, respectively. The control efficacy for Cnaphalocrocis medinalis （Guenée） was much better. This biological control method could be equivalent to chemical control method in the control effects on main pests in rice. The yield under the biological control was 26.5% higher than that of the control group, and the biological control had a signifcant increase in the number of natural enemies such as spider, up to 400 per 100 plants. Therefore, the sustainable prevention and control were achieved in the presentence with natural enemy organism. 展开更多
关键词 Trichogramma japonicum Biological control Rice Chilo suppressalis （walker） Cnaphalocrocis medinalis （Guenée）
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阿维菌素对广赤眼蜂(Trichogramma evanescens)不同发育阶段的毒性和实验种群动态的影响 认领 引用 被引量：15
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作者 朱九生 连梅力 +1 位作者 王静 秦曙 《生态学报》 CAS 北大核心 2009年第9期4738-4744,共7页
研究了阿维菌素对广赤眼蜂不同发育阶段的毒性和实验种群动态的影响。结果表明,阿维菌素田间推荐剂量喷雾处理可显著降低米蛾卵内广赤眼蜂的羽化率;除卵期外,其它3种发育阶段经该药处理,羽化后的雌蜂寿命显著缩短,其中预蛹和蛹期处理雌... 研究了阿维菌素对广赤眼蜂不同发育阶段的毒性和实验种群动态的影响。结果表明,阿维菌素田间推荐剂量喷雾处理可显著降低米蛾卵内广赤眼蜂的羽化率;除卵期外,其它3种发育阶段经该药处理,羽化后的雌蜂寿命显著缩短,其中预蛹和蛹期处理雌蜂前翅畸形率高达43.3%～47.2%,影响程度随着其生长发育的进行呈增大趋势。根据药膜法剂量与效应测定结果,广赤眼蜂成蜂对阿维菌素比较敏感,LC50值为2.1991mg·L-1。温室盆栽试验表明,1.8%阿维菌素乳油对广赤眼蜂成蜂的持效期为10d,具有一定程度的残留毒性。广赤眼蜂的蛹经阿维菌素亚致死剂量LC35处理后,发育至成蜂,除羽化后的雌蜂产卵量显著减少外,雌蜂寿命、子代羽化率和子代性比与对照并无显著差异。生命表参数显示,LC35处理后的广赤眼蜂净增值率和世代平均历期明显地低于对照,但内禀增长率、周限增长率和种群倍增时间与对照差异不明显。可以认为阿维菌素亚致死剂量对广赤眼蜂的种群没有重要影响。 展开更多
关键词 阿维菌素 广赤眼蜂 生物防治 副作用 持效期 种群动态
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玉米螟赤眼蜂(Trichogramma ostriniae)寄主标记信息素和学习经历对产卵行为的影响 认领 引用 被引量：10
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作者 王素琴 练永国 +1 位作者 康总江 墨铁路 《生态学报》 CAS 北大核心 2007年第9期3910-3915,共6页
报道了标记信息素和雌蜂经历对玉米螟赤眼蜂Trichogramma ostriniae产卵行为的影响。研究结果表明,玉米螟赤眼蜂的寄主标记信息素是在其产卵过程中的收场阶段由产卵器产生的,并且标记在寄主卵表的化学物质;玉米螟赤眼蜂对标记信息素的... 报道了标记信息素和雌蜂经历对玉米螟赤眼蜂Trichogramma ostriniae产卵行为的影响。研究结果表明,玉米螟赤眼蜂的寄主标记信息素是在其产卵过程中的收场阶段由产卵器产生的,并且标记在寄主卵表的化学物质;玉米螟赤眼蜂对标记信息素的识别不具有先天性,其必须先用产卵器插入寄生卵来检测是否被寄生,然后其触角不停地敲击,通过学习获得对标记信息素的识别能力,从而放弃了对寄生卵的选择,学习对初始放弃时间有着重要影响,改善了其对寄主搜索效率,这种学习行为是与寄主联系在一起学习的,它能根据寄主被寄生与否而对标记信息素作出反应与不反应。该研究丰富了生态学理论,为其在生防中更好的应用提供了科学依据。 展开更多
关键词 寄主标记信息素 经历 玉米螟赤眼蜂 产卵行为 初始放弃时间
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Effect of Insecticides on TrichogrammaParasitoids Used in Biological Control against Prays oleaeInsect Pest 认领 引用 被引量：4
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作者 Imen Blibech Mohieddine Ksantini +1 位作者 Taieb Jardak Mohamed Bouaziz 《Advances in Chemical Engineering and Science》 CAS 2015年第3期362-372,共11页
This study investigated the direct effect of the insecticides deltamethrin and spinosad on three egg parasitoids species: Trichogramma oleae, T. cacoeciae and T. bourarachae. The parasitoid pupae were exposed to pesti... This study investigated the direct effect of the insecticides deltamethrin and spinosad on three egg parasitoids species: Trichogramma oleae, T. cacoeciae and T. bourarachae. The parasitoid pupae were exposed to pesticide residues on fresh olive tree leaves at recommended concentrations (RC) at different time intervals: 3, 10, 17, 24 and 31 days after pesticide applications. Parasitism viability (% emergence from parasitized eggs) and adult emergence time (developmental time from pupa to adult emergence) were evaluated. Regarding to the International Organization of Biological Control (IOBC) guidelines, results of toxicity effects of insecticides show that: Deltamethrin was moderately harmful to all Trichogramma species at RC (Decis&reg;100 milliliters·ha&minus;1), however, spinosad was harmless to moderately harmful at RC (Tracer&reg;20 milliliters·ha&minus;1). Trichogramma species revealed differences with regard to adult emergence time and exhibited significant changes in parasitism viability with increasing time after pesticide treatment. While deltamethrin residues affected parasitism viability 31 days after the product application, spinosad displayed similar viability for almost species 24 days after the application. The usefulness of Trichogramma parasitoids used as biological control agents, in olive tree ecosystem, was discussed in integrated pest management programs for Prays oleae control when parasitoid species were exposed during pupal stage to the insecticide residue. 展开更多
关键词 Insecticide Effect Trichogramma Species Olive Tree Parasitism Viability Emergence Time
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Assessment of Two TrichogrammaSpecies with Bacillus thuringiensisvar. krustaki for the Control of the Tomato Leafminer Tuta absolutaMeyrick (Lepidoptera: Gelechiidae) in Iran 认领 引用 被引量：4
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作者 Ghazwan Alsaedi Ahmad Ashouri Reza Talaei-Hassanloui 《Open Journal of Ecology》 2017年第2期112-124,共13页
In this study, we investigated the efficiency of T. brassicae and T. embryophagum in combination with bacterial suspension of B. thuringiensis against the tomato leafminer T. absoluta eggs in cage inside greenhouse (s... In this study, we investigated the efficiency of T. brassicae and T. embryophagum in combination with bacterial suspension of B. thuringiensis against the tomato leafminer T. absoluta eggs in cage inside greenhouse (semi field) experiments. Four treatments were used (T. brassicae or T. embryophagum + T. absoluta) (T1), (B. thuringiensis + T. absoluta) (T2), (T. brassicae or T. embryophagum + B. thuringiensis + T. absoluta) (T3) and control (T4). The lowest number of T. absoluta mines (6.1, 0.5 mine per plant) were recorded in T3 for T. brassicae and T. embryophagum were significantly lower than those of all other treatments which were followed by T1 and T2, while the highest number of mines per plant (50.70) were recorded in control (T4). In addition, the parasitism rate, adults’ emergence, the number of females and adult longevity of two parasitoids were investigated. According to the obtained results, the highest parasitism rate was obtained for T. embryophagum when treated with Bt reared in the T. absoluta eggs (31.18%). However, no significant differences were detected between T. brassicae and T. embryophagum in mortality and adult emergence rates were found when they were treated with/ without Bt reared in the T. absoluta eggs in cage inside greenhouse. Also, the longevity of T. embryophagum was significantly better than T. brassicae p = 0.000. This is the first study to investigate T. embryophagum in cage inside greenhouse for parasitizing the eggs of T. absoluta and results of present study suggested that T. embryophagum with Bt could be more efficient for biocontrol of T. absoluta. 展开更多
关键词 Tuta absoluta Natural Enemies Trichogramma brassicae Trichogramma embryophagum Biological Characteristics Bacillus thuringiensis Semi Field
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Infection of Wolbachia in Trichogramma cacoeciae 认领 引用 被引量：3
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作者 WANG Wei-hua, GONG Peng and SHEN Zuo-rui 《Agricultural Sciences in China》 2003年第6期634-638,共5页
Wolbachia is a symbiotic bacterium that alters reproductive behavior of numerous arthropods. It is the most advanced way to study phytogeny and classification based on sequences of the wsp gene. The presence of Wolbac... Wolbachia is a symbiotic bacterium that alters reproductive behavior of numerous arthropods. It is the most advanced way to study phytogeny and classification based on sequences of the wsp gene. The presence of Wolbachia in a lab strain of the thelytokous Trichogramma cacoeciae was firstly identified based on amplification and sequencing part of the wsp gene. Aligned the resulting sequence with the published ones, the phylogenetic relationships among Wolbachia which was found in T. cacoeciae, T. dendrolimi and other insects were established. The Wolbachia that found in T. cacoeciae and in T. dendrolimi belong to the Kue group and the Pip group, respectively. 展开更多
关键词 Wolbachia Trichogramma wsp gene Phylogeny
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Determination and evaluation on field control efficacy of Trichogramma dendrolimi against Ostrinia furnacalis 认领 引用 被引量：1
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作者 ZHAO Xiu-Mei ZHANG Shu-Quan +5 位作者 LUO Bao-Jun QU Zhong-Cheng LI Min WANG Li-Da WU Lin-Lin LI Qing-Chao 《环境昆虫学报》 CSCD 北大核心 2011年第4期436-441,共6页
The results of evaluation on field control efficacy of Trichogramma dendrolimi against Ostrinia furnacalis showed that the correction rates of Ostrinia furnacalis egg mass parasitism were 71.75% and 73.57%,the average... The results of evaluation on field control efficacy of Trichogramma dendrolimi against Ostrinia furnacalis showed that the correction rates of Ostrinia furnacalis egg mass parasitism were 71.75% and 73.57%,the average control effect were 65.85% and 70.24%,the restoration yield loss rates were 6.78% and 7.97%,input-output ratio at 1:27.8 and 1:33.5 in Longjiang county of Heilongjiang province in 2009 and 2010,respectively.The technology is a integration of advanced,practical,environmental safety,effective biocontrol measures,embodies the "public plant protection,green plant protection" fully,has significant economic,social and ecological benefits. 展开更多
关键词 Trichogramma dendrolimi Biological control Ostrinia furnacalis Field control efficacy
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The Utility of Specific Markers Based on ITS2 Sequences for Molecular Identification and Detection of Trichogramma spp. 认领 引用 被引量：1
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作者 LI Zheng-xi and SHEN Zuo-rui 《Agricultural Sciences in China》 2002年第9期998-1005,共8页
The technology based on specific PCR amplification using internal transcribed spacer 2 of nuclear ribosomal DNA for molecular identification and detection of Trichogramma species was studied. Firstly the ITS2s of six ... The technology based on specific PCR amplification using internal transcribed spacer 2 of nuclear ribosomal DNA for molecular identification and detection of Trichogramma species was studied. Firstly the ITS2s of six Trichogramma species were cloned and sequenced, and the interspecific sequence variation was analyzed. Secondly the ITS2 regions of six geographical populations of T. dendrolimi were cloned and sequenced, and the intraspecific sequence identity was analyzed. The results show that the interspecific variation and intraspecific similarity of ITS2 sequences are very suitable for designation of specific primers at species-level. Screening of specific primers for T. dendrolimi leads to final sensitive and stable diagnostic primers. This system lets non-specialists can not only identify adults (males and females), but also identify eggs in parasitized hosts rapidly and accurately, which is impossible by conventional methods. Further development of this protocol can create a complete set of specific primers for different species of the whole genus Trichogramma . 展开更多
关键词 Specific marker ITS2-rDNA Molecular identification Trichogramma
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松毛虫赤眼蜂(Trichogramma dendrolimi)几个种群间繁殖性状的杂交效果分析 认领 引用
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作者 赵书红 陈德全 +1 位作者 高文仲 杨静华 《华中农业大学学报》 CAS 北大核心 1993年第5期438-443,共6页
应用完全双列杂交设计,对松毛虫赤眼蜂几个种群间繁殖性状的杂交效果进行了研究。通过杂种优势率的统计检验及亲本一般配合力、特殊配合力的分析,得出10个杂交组合中的最优组合为JNYT11×LT,JNYT11×XT。
关键词 松毛虫赤眼蜂 杂交 配合力
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Quality assessment of local Trichogramma species (Hymenoptera, Tri- chogrammatidae) to control the olive moth Prays oleae Bern. (Lepidop- tera, Yponomeutidae) 认领 引用
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作者 Imen Blibech 《环境昆虫学报》 CSCD 北大核心 2011年第4期429-435,共7页
Assessment of quality of biological control agents is an important step for the success of any biocontrol program.Experiments were carried out to select candidate Trichogramma species for use in biological control of ... Assessment of quality of biological control agents is an important step for the success of any biocontrol program.Experiments were carried out to select candidate Trichogramma species for use in biological control of the olive moth Prays oleae Bern(Lepidoptera,Yponomeutidae).Thirteen local strains were preselected on the basis of the geographical origin and the availability from mass production of the rearing host Ephestia kuehniella ZELL.(Lepidoptera,Pyralidae) under laboratory conditions.Selection tests were focusing on acceptance and preference for P.oleae eggs.In the acceptance test,a single parasitoid female was offered P.oleae eggs on "tricho-card" for 6 hours at 25°C,70% HR and L16:D9 and assessed for parasitism after 6 days.The preference was determined by offering the choice and observing contacts with eggs of the target pest P.oleae and eggs of the host E.kuehniella.Parasitism was therefore assessed 6 days after the experiment under similar laboratory conditions.In host acceptance test,most eggs of P.oleae were parasited by strains belonging to the species T.oleae,T.bourarachae and T.cacoeciae.These strains also showed a high number of contacts with olive moth eggs in preference tests.However,a small number of T.bourarachae observed ovipositions resulted in successful parasitism.Therefore,T.oleae and T.cacoeciae were selected as candidates for further experiments. 展开更多
关键词 Biological control Trichogramma Prays oleae Ephestia kuehniella preference tests
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Efficacy of Trichogramma evanescens and Bacillus thuringiensis kurstaki to Control Lesser Date Moth Batrachedra amydraula Merck 认领 引用
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作者 Hussain Fadhil Alrubeai Bassim Shehab Hamad +2 位作者 Ahmed Mushtaq Abdullatif Hani Zair Ali Ahmed Abed 《Journal of Agricultural Science and Technology(B)》 2014年第4期281-284,共4页
Efficacy of the egg parasitoid, Trichogramma evanescens and the bio-pesticide bacteria, Bacillus thuringiensis kurstaki （Btk） in reduction of lesser date moth, Batrachedra amydraula infestations were studied during ... Efficacy of the egg parasitoid, Trichogramma evanescens and the bio-pesticide bacteria, Bacillus thuringiensis kurstaki （Btk） in reduction of lesser date moth, Batrachedra amydraula infestations were studied during seasons of 2011 and 2012. The result of 2011 showed that the release of egg parasitoid by rate of 500 and 1,000 parasitoids/palm tree achieved 55.06% and 67.45% reduction in infestation percentage, respectively. Meanwhile high reduction in infestation was achieved by Btk （78.65%） at dose rate of 6 g Btk powder/kg talc powder. The result of 2012 showed that the highest control efficacy （58.78%） was achieved at the first time of the control process, using Btk at dose rate of 6 g/kg talc powder. This result was not different significantly from the release of egg parasitoid by rate of 1,000 parasitoids/palm tree which achieved 53% reduction in infestation percentage. At the second time （after one week from the first application）, the efficacy of Btk at dose rate of 6g/kg talc powder was increased to 78.78%, which differ significantly with the release of egg parasitoid by the same rate of 1,000 parasitoids/palm tree, having 61.79% efficacy. Reapplication of the control method achieved an increase in efficacy of the control agents, such increase was significant for both the release of the parasitoid at rate of 1,000/palm tree and for Btk at a dose of 6 g/kg talc powder. 展开更多
关键词 Lesser date moth Batrachedra amydraula Trichogramma evanescens Btk.
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The Impact of Beauveria bassiana, Bacillus thuringiensis (Bt) Spray, Trichogramma pretiosum and Spinosad on the Lepidoptera: Crambidae, European Corn Borer (Ostrinia nubilalis) 认领 引用
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作者 R. D. Tembo D. M. Pavuk 《Journal of Agricultural Science and Technology(A)》 2011年第5期678-692,共15页
The research cxamined the effects of microbial and novel insecticidal control strategies and also Irichogramma pretiosum on the I,epidoptera： Crambidae, the European corn borer （ECB）, （Ostrinia nubilalis）. The tr... The research cxamined the effects of microbial and novel insecticidal control strategies and also Irichogramma pretiosum on the I,epidoptera： Crambidae, the European corn borer （ECB）, （Ostrinia nubilalis）. The treatments included ~ino^d, from bacteria the entomopathogenic fungus Beauveria bassiana, the egg parasitoid Trichogramma pretiosum, and foliar applied Bt spray, and t^vo combinations Bearveria bassiana plus Bt spray and Trichogramma pretiosum and spinosad. The infestations by the European corn borer larvae on stalks of corn were very＂ severe in all the control treatments both 2006 and 2007. The microbial treatments caused various levels of European corn borer mortality. In all the parameters there was a significant difference between the control and other treatments with a P 〈 0.00 l. In this research, treatment with spinosad emerged as the most effective biological agent in the control of the European corn borer. The treatments had no significant effects on the relative abundance and composition of non-target arthropods （P 〉 0.05）. This research is relevant in boosting underutilized control strategies and increasing stakeholder adoption of integrated pest management practices and thereby＇ reducing the use of conventional insecticides especially for orgamc thrmers. This is very important especially in certain countries where the commumities are skeptical about consuming transgenic crops. 展开更多
关键词 European corn borer （Ostrinia nubilalis） Trichogramma pretiosum spmosad Beauveria bassiana Bt sprays, corn
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氯虫苯甲酰胺亚致死浓度对玉米螟赤眼蜂寄生及繁殖能力的影响 认领 引用 被引量：1
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作者 朱文雅 郭琼琼 +3 位作者 陈梦娇 王娟 相会明 张烨 《中国生物防治学报》 CSCD 北大核心 2026年第1期127-133,共7页
为明确氯虫苯甲酰胺亚致死浓度对玉米螟赤眼蜂寄生及繁殖能力的影响,本研究利用HollingⅡ功能反应模型分析了氯虫苯甲酰胺作用下玉米螟赤眼蜂对米蛾卵的寄生功能反应特征;同时,通过数值反应参数描述了氯虫苯甲酰胺作用下玉米螟赤眼蜂的... 为明确氯虫苯甲酰胺亚致死浓度对玉米螟赤眼蜂寄生及繁殖能力的影响,本研究利用HollingⅡ功能反应模型分析了氯虫苯甲酰胺作用下玉米螟赤眼蜂对米蛾卵的寄生功能反应特征;同时,通过数值反应参数描述了氯虫苯甲酰胺作用下玉米螟赤眼蜂的种群数量变化情况。研究结果表明:经氯虫苯甲酰胺处理后的玉米螟赤眼蜂对米蛾卵的功能反应类型虽基本符合HollingⅡ模型,但模型的各项参数有所改变。在氯虫苯甲酰胺的作用下,玉米螟赤眼蜂对米蛾卵的瞬间攻击率增强,处置时间延长,寄生效能由60.46降低至56.05,寄生上限也由57.21粒下降至44.24粒,且搜寻效应也随着米蛾卵密度的增加而逐渐降低。当米蛾卵密度大于10粒时,氯虫苯甲酰胺对玉米螟赤眼蜂种群干扰作用控制指数的影响随着米蛾卵密度的增加而减弱,米蛾卵密度10粒为维持玉米螟赤眼蜂种群繁衍的临界值。综上所述,氯虫苯甲酰胺对玉米螟赤眼蜂寄生能力,生长发育及繁殖均存在一定程度的负面影响,这为害虫治理过程中科学协调化学防治和生物防治,以及为指导科学用药提供理论基础。 展开更多
关键词 玉米螟赤眼蜂 氯虫苯甲酰胺 功能反应 数值反应 搜寻效应
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基于螟黄赤眼蜂的稻田螟虫绿色防控效果评价 认领 引用 被引量：1
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作者 袁曦 张宝鑫 +2 位作者 郭义 赵灿 李敦松 《华南农业大学学报》 CAS CSCD 北大核心 2026年第2期298-304,共7页
【目的】水稻螟虫是威胁水稻生产的重要害虫,幼虫蛀食茎秆导致枯心苗、白穗等症状,严重影响水稻产量与品质。针对这一农业生产难题,本研究开展螟黄赤眼蜂Trichogramma chilonis Ishii对水稻螟虫的绿色防控效果探究,以期减少化学农药的施... 【目的】水稻螟虫是威胁水稻生产的重要害虫,幼虫蛀食茎秆导致枯心苗、白穗等症状,严重影响水稻产量与品质。针对这一农业生产难题,本研究开展螟黄赤眼蜂Trichogramma chilonis Ishii对水稻螟虫的绿色防控效果探究,以期减少化学农药的施用,实现水稻安全生产。【方法】以田间无人机淹没式释放螟黄赤眼蜂为主,灯诱、性诱等理化诱控和生态调控为辅,且在害虫达到防治阈值时辅以绿色药剂统防统治的综合防控技术体系,研究绿色防控对水稻螟虫的防治效果和水稻产量的提升作用。【结果】释放螟黄赤眼蜂使水稻螟虫虫口减退率达85%,显著减少水稻卷叶数和枯心率,基于螟黄赤眼蜂的水稻螟虫绿色防控处理的水稻产量达6688.95 kg/hm2,相比传统化学农药处理的6073.05 kg/hm2,产量增加10.14%。【结论】基于螟黄赤眼蜂的绿色防控能有效控制水稻螟虫种群,增加水稻产量,且对环境友好,具备推广潜力。 展开更多
关键词 螟黄赤眼蜂 水稻螟虫 绿色防控 田间防效 水稻产量
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The potential of trehalose to replace insect hemolymph in artificial media for Trichogramma dendrolimi (Hymenoptera: Trichogrammatidae) 认领 引用 被引量：3
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作者 Xin Lu Shi-Chou Han +2 位作者 Li-Ying Li Simon Grenier Patrick De Clercq 《Insect Science》 SCIE CAS CSCD 2013年第5期629-636,共8页
Insect additives have been shown to improve the value of artificial media for Trichogramma species, but at the same time maintain dependence on parallel cultures of host insects. In the present study, Trichogramma den... Insect additives have been shown to improve the value of artificial media for Trichogramma species, but at the same time maintain dependence on parallel cultures of host insects. In the present study, Trichogramma dendrolimi Matsumura was reared in vitro from egg to adult on artificial media with different contents of pupal hemolymph of Chinese oak silkmoth Antheraea pernyi （Guérin-Méneville） and with supplements of distilled water, or of trehalose dissolved in water or in Grace＇s insect medium. The results indicated insect hemolymph was the key component of artificial medium. Developmental parameters, including rates of parasitism, pupation, adult emergence and normal adults, and numbers of produced adults, were increased on media supplemented with trehalose even when the proportion of pupal hemolymph was reduced. Two artificial media, the first containing 30% hemolymph and 10% trehalose in water with 98.9% parasitism rate, 77.7.0% pupation rate, 77.2% emergence rate, 80.0% normal adult rate and 333 produced adults, and the second containing 25% hemolymph and 15% trehalose in Grace＇s insect medium with 97.8% parasitism rate, 91.0% pupation rate, 85.2% emergence rate, 76.1% normal adult rate and 757 produced adults, were believed to hold potential to mass produce T. dendrolimi. The use of trehalose to partially replace pupal hemolymph in artificial medium of this and other Trichogramma species may contribute to a significant reduction in their production cost and may as such help to evade problems related to short supplies of lepidopteran eggs, which currently constitute the main factitious host for the mass rearing of the parasitoids. 展开更多
关键词 artificial medium in vitro rearing trehalose Trichogramma dendrolimi
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M-PCR: a powerful method for rapid molecular identification of Trichogramma wasps (Hymenoptera: Trichogrammatidae) 认领 引用 被引量：2
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作者 XIANG-LIDANG SHUO-YANGWEN +1 位作者 XIAO-FANGHE XIONG-FEIPANG 《Insect Science》 CAS 2005年第2期77-85,共9页
Two species-specific primers were designed depending on ITS2 sequence variation of 37 Trichogramma wasps, and these primers were applied to establish an assay,multiplex PCR (M-PCR), for molecular diagnosis of two impo... Two species-specific primers were designed depending on ITS2 sequence variation of 37 Trichogramma wasps, and these primers were applied to establish an assay,multiplex PCR (M-PCR), for molecular diagnosis of two important Trichogramma wasps,T. confusum and T. dendrolimi, in China. Multiplex-PCR results showed that only target species produced two PCR products, one product of ITS2 region species-specific amplification and one product of its ITS 1 region universal amplification, but other species produced only one ITS1 universal PCR product. Using this method, the target Trichogramma species can be distinguished from other Trichogramma species. Molecular identification based on M-PCR has particular value over morphological technology and other approaches, such as normal molecular and biochemical methods. Furthermore, because M-PCR assay can avoid false negative results, which frequently happen in PCR reaction, this method will be much more accurate and useful for Trichogramma identification, and can be developed as an easy and rapid diagnostic kit applied in the identification and quality monitoring of Trichogramma mass products both in the factory and in the field. Such an easy and rapid diagnostic kit will be valuable in the application of Trichogramma species as a biological control. 展开更多
关键词 trichogramma species-specific primer multiplex PCR molecularidentification
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胶东地区夏玉米田赤眼蜂种群调查 认领 引用
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作者 代晓彦 王瑜 +8 位作者 王瑞娟 尹振娟 孙作文 孟璐璐 张倩 张慧 陈浩 郑礼 翟一凡 《山东农业科学》 CAS 北大核心 2026年第1期130-136,共7页
赤眼蜂是全球公认的高效寄生鳞翅目害虫卵的天敌昆虫。为明确山东省胶东地区夏玉米田主要害虫——亚洲玉米螟的优势天敌赤眼蜂种群,以及评估商品化松毛虫赤眼蜂产品在该地区的田间适应性,为当地释放优势赤眼蜂防治玉米螟提供指导依据,... 赤眼蜂是全球公认的高效寄生鳞翅目害虫卵的天敌昆虫。为明确山东省胶东地区夏玉米田主要害虫——亚洲玉米螟的优势天敌赤眼蜂种群,以及评估商品化松毛虫赤眼蜂产品在该地区的田间适应性,为当地释放优势赤眼蜂防治玉米螟提供指导依据,本研究首先在实验室条件下对3种赤眼蜂(玉米螟赤眼蜂、螟黄赤眼蜂和松毛虫赤眼蜂)寄生玉米螟卵的能力进行比较,同时在胶东地区的青岛即墨、莱西和平度各100 hm2夏玉米田释放松毛虫赤眼蜂2次,并采集田间被寄生的玉米螟卵块,待寄生卵块羽化后,对赤眼蜂种类进行鉴定。结果显示,实验室条件下3种赤眼蜂均能寄生玉米螟卵,但寄生能力存在显著差异,其中玉米螟赤眼蜂寄生能力最强,其次是螟黄赤眼蜂,而松毛虫赤眼蜂的寄生率最低。田间试验中,共采集到29块被赤眼蜂寄生的玉米螟卵块,其中26块鉴定出赤眼蜂种群,通过将它们的基因序列在GenBank数据库中比对分析,共确认3种赤眼蜂:15块卵块被玉米螟赤眼蜂寄生,9块被螟黄赤眼蜂寄生,仅2块被松毛虫赤眼蜂寄生。本研究表明,在胶东地区的夏玉米田中,玉米螟赤眼蜂是寄生玉米螟卵的优势种群,其次为螟黄赤眼蜂,而松毛虫赤眼蜂的寄生率较低,适应性较差。这一结果可为胶东地区夏玉米田的赤眼蜂种类选择及防治玉米螟的技术应用提供科学依据和技术支撑。 展开更多
关键词 玉米螟赤眼蜂 螟黄赤眼蜂 松毛虫赤眼蜂 分子鉴定 种群调查
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