Pesticide selectivity to the parasitoid Trichogramma pretiosum: A pattern 10-year database and its implications for Integrated Pest Management

Ecotoxicology and Environmental Safety

Rafael Antonio Pasini¹  Enio Junior Seidel²  Mikael Bolke Araújo³  Matheus Rakes³  Juliano de Bastos Pazini³  Anderson Dionei Grützmacher³  Daniel Bernardi⁴  Maíra Chagas Morais⁵ 

[1] Corresponding author.;Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, São Paulo, Brazil;Department of Plant Protection, Federal University of Pelotas (UFPel), Pelotas, Rio Grande do Sul, Brazil;Department of Statistics, Center of Natural and Exact Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil;Riograndense Higher Education Center (CESURG), Sarandi, Rio Grande do Sul, Brazil;

关键词: Egg parasitoid;    Biological control;    Meta-analysis;    Chemical control;    Temperate fruit trees;    Annual crops;   

DOI  :  

来源: DOAJ

【 摘 要 】

Trichogramma pretiosum is one of the main egg parasitoids used in the control of lepidopteran pests in Brazil. This natural enemy can be negatively affected by the use of insecticides, herbicides, and fungicides. The present work used a systematic review and meta-analysis to group information from multiple studies on the selectivity of pesticides (279 commercial products) in rice, corn, soybean, apple and peach crops for immature stages (egg-larva, pre-pupa, and pupa) and adult parasitoids. The selected studies used the International Organization for Biological and Integrated Control (IOBC) methodology with the same adaptations for T. pretiosum. The meta-analysis found that corn crops had the highest frequency of tests (2 0 7). The most frequently tested active ingredients (a.i.) were glyphosate, glyphosate isopropylamine salt, and sulfur at frequencies of 41, 32 and 24 tests, respectively. The pesticides registered for rice crops showed the greatest sublethal effects on T. pretiosum, with an approximately 47% reduction in parasitism (RP) or emergence (RE). The adult stage of the parasitoid showed greater sensitivity to the tested pesticides (65% RP), in comparison to the immature stages. In general, insecticides showed superior toxicity for all development stages of T. pretiosum, compared to herbicides and fungicides, regardless of the recommended dosage for the crop. The present study aggregates information related to selectivity for the four life stages of T. pretiosum, contributing significantly to the integration of biological control and chemical control in rice, corn, soybean, apple and peach crops in Brazil.

【 授权许可】

Unknown