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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Spiromesifen toxicity to the spider mite Tetranychus urticae and selectivity to the predator Neoseiulus californicus

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Author(s):
Sato, Mario E. [1] ; da Silva, Marcos Z. [1] ; Raga, Adalton [2] ; Cangani, Katia G. [1] ; Veronez, Bruce [1] ; Nicastro, Roberto L. [1]
Total Authors: 6
Affiliation:
[1] Inst Biol, Lab Acarol, BR-13092543 Campinas, SP - Brazil
[2] Inst Biol, Lab Econ Entomol, BR-13092543 Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: PHYTOPARASITICA; v. 39, n. 5, p. 437-445, NOV 2011.
Web of Science Citations: 10
Abstract

Tetranychus urticae Koch (Acari: Tetranychidae) is a major pest of several agricultural crops and Neoseiulus californicus (McGregor) (Acari: Phytoseiidae) is an important natural enemy of this pest mite. The objective of the study was to evaluate the effect of spiromesifen on the development and reproduction of T. urticae, and to assess the influence of spiromesifen and other acaricides on the population growth rates of the spider mite and its predator, N. californicus. Toxicity tests with spiromesifen at different life stages of T. urticae indicated that eggs less than 72 h old were more sensitive than other development stages. The oviposition rate of T. urticae was significantly affected by spiromesifen. Experiments on the effects of spiromesifen on the growth rates of T. urticae and N. californicus indicated that spiromesifen is innocuous to the predaceous mite but highly toxic to the spider mite, leading to population suppression in 10 days. Fenpropathrin, acephate and neem oil were not harmful to N. californicus, but were not so efficient as spiromesifen in controlling T. urticae, and had significantly less influence on the population growth rates of the spider mite. Among these three products, only neem oil caused significant reduction in the growth rate of T. urticae. Chlorfenapyr, abamectin, milbemectin and diafenthiuron significantly affected the population growth rates of T. urticae and N. californicus. Spiromesifen was the most promising acaricide for managing the two-spotted spider mite, when used in combination with N. californicus. (AU)

FAPESP's process: 07/02748-1 - Resistance of Tetranychus urticae Koch to milbemectin and abamectin acaricides and management of strawberry and ornamental plants pest mites using predatory mites from Phytoseiidae family
Grantee:Roberto Lomba Nicastro
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 07/08612-4 - Studies on pesticide resistance on thrips (Frankliniella occidentalis) and mites (Tetranychus urticae), in several crops, and host preference of these pests on ornamental plants in the State of São Paulo
Grantee:Mário Eidi Sato
Support Opportunities: Regular Research Grants