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Biological control with Trichogramma pretiosum increases organic maize productivity by 19.4%

De Lourdes Corrêa Figueiredo, Maria; Cruz, Ivan; Da Silva, Rafael Braga and Foster, John Edward (2015) Biological control with Trichogramma pretiosum increases organic maize productivity by 19.4%. Agronomy for Sustainable Development, pp. 1175-1183.

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Document available online at: https://hal.archives-ouvertes.fr/hal-01326556


Summary

AbstractSpodoptera frugiperda is a major pest causing maize yield loss in Brazil. There is therefore a need for control methods, notably for organic farming because classical pesticides are not allowed. A potential solution for organic maize is to apply the biological control agent Trichogramma pretiosum to reduce S. frugiperda populations. Here, we tested the application of one, two, or three releases of T. pretiosum. We measured plant damage ratings, egg masses parasitized, and grain yield. Results show that 79.2 % of egg masses were parasited. Maize yields for parasited plots increased of 701 kg/ha versus control plots. This result equals a 19.4 % gain of productivity and US$96.5 gain per hectare. Therefore, biological control with egg parasitoids is a promising alternative to control S. frugiperda in organic maize.


EPrint Type:Journal paper
Keywords:Biological control (en), Egg parasitoid (en), IPM (en), Monitoring (en), Organic farming (en), Pheromone trap (en)
Subjects:"Organics" in general
Research affiliation: France > INRAe - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
ISSN:ISSN: 1774-0746
DOI:10.1007/s13593-015-0312-3
Related Links:https://hal.archives-ouvertes.fr/hal-01326556/document
Project ID:HAL-INRAe
Deposited By: PENVERN, Servane
ID Code:41565
Deposited On:12 Aug 2021 10:37
Last Modified:12 Aug 2021 10:37
Document Language:English

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