אסיף מאגר המחקר החקלאי

Proliferation and branching of cotton seedlings: the suspected cause - thrips tabaci, the influence on yield, and tests to reduce damage

Year:

1986

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Volume :

14

Co-Authors:

Klein, M., Dept. of Entomology, The Volcani Center, Bet Dagan, Israel
Franck, A., Dept. of Virology, ARO The Volcani Center, Bet Dagan, Israel
Rimon, D., Dept. of Industrial Crops, ARO The Volcani Center, Bet Dagan, Israel

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Abstract:

A new phenomenon of proliferation and branching of cotton has spread through most of the cotton growing areas in Israel in the past few years. Aphids, green leafhoppers and mites were ruled out as possible causal agents of branching. Leaf damage and bud destruction, similar to those observed in the field, were obtained by prolonged feeding of a laboratory-bred population of Thrips tabaci Lindeman on cotton seedlings. The feeding thrips were kept in a growth chamber at the temperatures and light conditions which prevail in April. The damage caused by T. tabaci in Israel is very similar to that described for several species of thrips, including T. tabaci, in other countries. Yield of fiber and seed was significantly reduced in plants when branching occurred early (up to the beginning of June) but not late in the growing season. © 1986, Springer Science + Business Media B.V.. All rights reserved.

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