Eficácia de Inseticidas para o Manejo de Diaphorina citri
Kuwayama (Hemiptera: Psyllidae) em Citros
Pedro T. Yamamoto, Marcos R. Felippe, André L.
Sanches, Juliana H. C. Coelho, Luiz F. Garbim e Nivian L. Ximenes
Abstract
The purpose of this
research was to evaluate the efficiency of systemic and spray
insecticides to control Diaphorina
citri in citrus orchard. The experiments was carried out
in the Marchesan Farm, located in the municipality of Matão,
SP, in Valencia sweet orange on Rangpur lime orchard. The evaluations
were consisted in the counting of adults present on the plant canopy,
walking around the canopy, and observation of four new branches/plant,
taken randomly in the periphery of the Valencia sweet orange canopy for
nymphs, considering the absence or presence. In spray, the insecticides
thiamethoxam, imidacloprid, acetamiprid, lambda-cyhalothrin,
deltamethrin, fenpropathrin, methidathion, dimethoate, ethion,
thiamethoxam + lambda-cyhalothrin, abamectin and etofenproxi were
efficient to control adults and nymphs of D. citri, and could
be an option to reduce the vector population. In application in the
soil, drench or injected, for thiamethoxam, aldicarb and imidacloprid,
the control period for adults and nymphs were from 45 to 60 days in
2-year-old sweet orange.
KEYWORDS - psyllid, Citrus sinensis, chemical
control, huanglongbing
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