Differences between the effects of insecticidal seed and foliar treatments on pea leaf weevils (Sitona lineatus L.) in the field pea (Pisum sativum L.)

Marek Seidenglanz, Jiří Rotrekl, Iva Smýkalová, Jana Poslušná and Pavel Kolařík
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Marek Seidenglanz: Services Ltd., Šumperk, Czech Republic
Jiří Rotrekl: Research Institute for Fodder Crops, Ltd., Troubsko, Czech Republic
Iva Smýkalová: Services Ltd., Šumperk, Czech Republic
Jana Poslušná: Services Ltd., Šumperk, Czech Republic
Pavel Kolařík: Research Institute for Fodder Crops, Ltd., Troubsko, Czech Republic

Plant Protection Science, 2010, vol. 46, issue 1, 25-33

Abstract: Tested seed treatments (two doses of thiamethoxam, thiamethoxam + fludioxonil + metalaxyl-M; two doses of clothianidin + beta-cyfluthrin) showed high effects on pea leaf weevils (Sitona lineatus L.) which approved relatively long-lasting and sufficient protection of several bottom nodes of stipules simultaneously. The effects of foliar treatments (chlorpyrifos + cypermethrin; acetamiprid, lambda-cyhalothrin) sometimes were evident only on the node which was determined as the youngest node at the time of spraying. The effects of the compared seed and foliar treatments on the reduction of S. lineauts larvae numbers on roots were not proven as positive. It is possible to conclude that the foliar application had no real effect in this sense at all. However, positive significant effects of thiamethoxam and clothianidin + beta-cyfluthrin on root nodulation in general were recorded. Especially higher doses of the seed treatments increased overall nodulation from 43% till 363%.

Keywords: Sitona lineatus L.; thiamethoxam; clothianidin; seed-applied insecticides; Pisum sativum L.; root nodulation (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:46:y:2010:i:1:id:34-2009-pps

DOI: 10.17221/34/2009-PPS

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