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The efficancy of different insecticides for control of Lepidopteran pests on cabbage in Lithuania

 

Laisvūnė Duchovskienė

Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kauno str. 30, LT-54333 Babtai, Kaunas distr.,

e-mail: laisve.d@lsdi.lt

 

The effect of insecticides: Karate Zeon 5CS (a. i. lambda cyhalothrin 50 g l-1), Eforia 065ZC (a.i. lambda cyhalothrin + tiametoxam 15 + 50 g l-1), Actara 25WG (a.i. tiametoxam 250 g kg-1) and Proteus OD (a. i. tiachloprid + deltamethrin 100 + 10 g l-1) on the abundance of the most harmful Lepidopteran pests was observed on white cabbage ‘Krautman in 20112012. The most efficient were insecticides Eforia 0.5 l ha-1 and Proteus 0.75 l ha-1 against both pests – diamondback moth (Plutella xylostella) and small cabbage white (Pieris rapae). All tested insecticides had higher efficiency and long lasting effect against P. xylostella and P. rapae in 2011, when the abundance of this pest was lower. The insecticide Actara was not efficient enough against P. rapae.

Key words:abundance, cabbage, efficiency, Pieris rapae, Plutella xylostella.