Comparison of three control methods, spraying, usual seed treatment and seed treatment plus pelleting, in order to control beet flea beetle, beet root weevil and beet leaf weevil in the Karaj area

Document Type : Scientific-Extension

Authors

1 Plant Pests and Diseases Research Institute

2 Sugar Beet Seed Institute

Abstract

Researches on pest control methods were carried out for three years (1996-98) in Motahary Research station at karaj. The experiment was conducted in RCBDwith nine treatments and four replications. Nine treatments were applied as follow:
Treatment no. I was as a check, treatment nos.2, 3 and 4 were monogerm sugar beet seed treated with Gaocho, Fibronil and Orten respectively; treatment no. 5 was pelleted seed without ; insecticide, treatments no, 6,7 and 8 were pelleted seed with Caocho, Fibronill and Orten respectively; and treatment no. 9 was sprayed traditionally. Each  plot was contain of 6 rows with ten meter long. In treatment no. 9 Eterimphos 50% with 0002 dosage was used. Reseraches carried out on three species of harmful insects of sugar beet including, beet flea beetle (Chaetocnema tibialis I 11.) beet root weevil (Conorrynchus brevirostris Gyll. ) and beet leaf weevil (lixus incanaescens Bcch.) Percentage of infestation (damaged plants %) was determined caused by each pest. Statiscal analysis of three years data showed that, treatment no. 9 (Usual spraying, local method) was the most effective method for control of beet flea beetle. Treatment no. 6 (Pelleted seed and treated with imidacloprid) had least infestation to beet root weevil and treatments no. 9 (local method) and 3 (treated seed with fibronill) were most effective ways for control of beet leaf weevil.

Keywords

Journal of Sugar Beet
Volume 15, Issue 1
February 2000
Pages 72-83

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