Articles
APPLICATION OF IMIDACLOPRID THROUGH THE LEAF AND POTATO TUBER IN THE CONTROL OF THE LEPTINOTARSA DECEMLINEATA SAY
Article number
462_157
Pages
991 – 998
Language
Abstract
As the L. decemlineata is subject to a constant pressure of insecticides, it quickly develops resistance, and thus new insecticides as methods of control are searched for.
One such insecticide is imidacloprid, which acts on the post synopsis and has a digestive and systemic effect on insects through contact.
The purpose of this research was to examine its possibilities in the control of the Colorado potato beetle.
The field trials were made on two locations, Belgrade and Zrenjanin, using the EEPP/EPPO methods.
In dressing potato tubers, imidacloprid was used in WS 70 and 350 FS formulations in doses of 0.05 up to 0.1 kg active matter and from 11.25 up to 22.50 g active matter per 100 kg potato tubers; in foliar treatments imidacloprid 200 SL and WG 70 was used.
When imidacloprid is used through the potato tuber, the overwintering adult of the L. decemlineata starts to feed on the recently emerged plants and dies immediately.
Eight hundred and thirty-one dead adults were detected on 40 plants.
The newly flownover females of the Colorado potato beetle start to lay their eggs 60 to 80 days after sowing.
Dependent on the dose of imidacloprid, the residual efficacy situates itself between 60 and 80 days.
When imidacloprid is used foliarly in doses of 0.05 to 0.1 kg active matter per hectare, and in conditions of high density of the L. decemlineata, a high initial toxicity and residual efficacy is achieved in 14 to 20 days.
One such insecticide is imidacloprid, which acts on the post synopsis and has a digestive and systemic effect on insects through contact.
The purpose of this research was to examine its possibilities in the control of the Colorado potato beetle.
The field trials were made on two locations, Belgrade and Zrenjanin, using the EEPP/EPPO methods.
In dressing potato tubers, imidacloprid was used in WS 70 and 350 FS formulations in doses of 0.05 up to 0.1 kg active matter and from 11.25 up to 22.50 g active matter per 100 kg potato tubers; in foliar treatments imidacloprid 200 SL and WG 70 was used.
When imidacloprid is used through the potato tuber, the overwintering adult of the L. decemlineata starts to feed on the recently emerged plants and dies immediately.
Eight hundred and thirty-one dead adults were detected on 40 plants.
The newly flownover females of the Colorado potato beetle start to lay their eggs 60 to 80 days after sowing.
Dependent on the dose of imidacloprid, the residual efficacy situates itself between 60 and 80 days.
When imidacloprid is used foliarly in doses of 0.05 to 0.1 kg active matter per hectare, and in conditions of high density of the L. decemlineata, a high initial toxicity and residual efficacy is achieved in 14 to 20 days.
Publication
Authors
I. Marko, R. Sreten, K. Natalija, E. Ljubisav, I. Sinisa
Keywords
insecticide, Imidacloprid, Leptinotarsa Decemlineata Say, Colorado potato beetle, resistance
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