INSECTICIDE SELECTIVITY FOR Doru lineare (DERMAPTERA: FORFICULIDAE)

CRISTIANE DOS SANTOS STECCA, AMARILDO PASINI, ADENEY DE FREITAS BUENO, MARLON DIAS DENEZ, DEBORA MELLO DA SILVA, MAICO ANDRE MORAES MANTOVAN

Resumo



This study aimed at assessing selectivity of insecticides to adults of Doru lineare. The tests were performed under controlled environmental conditions. Insecticides tested (g a.i. ha-1) were: flubendiamide (72); chlorantraniliprole (30); chlorantraniliprole (15) + lambda-cyhalothrin (7.5); lambda-cyhalothrin (7.5); chlorpyriphos (480); and control (distilled water). Treatments were sprayed over arenas made up with glass plates (area 169 cm2), imprisoning the insect with PVC rings. The top of the rings was protected with a fine fabric (tulle) where adult insects were sprayed with insecticides using a Potter Tower. Insect survival was assessed at 24, 48, 72, 96, and 120 h after exposing adults to the treatments. Flubendiamide and chlorantraniliprole were classified as harmless (class 1) to D. lineare and therefore apropriated to be used in Integrated Pest Management (IPM) programs since they can be sprayed preserving natural biological control. Chlorpyriphos, lambda-cyhalothrin and the mixture of chlorantraniliprole + lambda-cyhalothrin were harmful (class 4), moderately harmful (class 3), and slightly harmful (class 2), respectively. Non-selective products should also be tested in semi-field and field conditions to evaluate its persistence. Whenever possible, noxious and persistent insecticides should be replaced for more selective ones.


Palavras-chave


Dyamide; Pyretroid; Natural Enemy; predator; toxicity

Texto completo:

PDF


DOI: https://doi.org/10.18512/1980-6477/rbms.v13n1p107-115