Efficacy of insecticides on Tuta absoluta (Meyrick) and other
pests in pole tomato
Antonio Cesar dos Santos, Regiane Cristina Oliveira de Freitas
Bueno, Simone Silva Vieira, Adeney de Freitas Bueno
Abstract
Field studies were conducted on 2001 and 2005 to
determine the effectiveness of several insecticides in controlling Tuta absoluta and the impact of this
control on the occurrence of other pests on tomato. The tested
insecticides
with their respective rates per 100 liters
of water were: spinosad 4.8, 6.0, 7.2 g.
a.i. with and without
Break Thru 0.03% v/v; chlorfenapyr 12.0 g.
a.i., emamectin 2.0 g.
a.i. with Joint Oil 0.25 % v/v e indoxacarb 4.8 g.
a.i. with Joint Oil
0.25 % v/v. The experiment was designed as randomized complete block
with 4
replications per treatment. Trials were evaluated on a weekly basis.
All tested
treatments, except spinosad without Break Thru, were
effective to control T. absoluta.
Considering the pest complex, spinosad + Break Thru
was the best treatment mainly because of the best overall performance
on the
serpentine leafminer Liriomyza spp.
Key
words
- Lycopersicon esculentum
Mill., chemical
control, integrated pest
management.
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