Co-Authors:
Van Elferen, J.H.W.M., Entomology, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Yathom, S., Entomology, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Abstract:
A study was carried out to determine the distribution of feeding and oviposition punctures made by Liriomyza trifolii Burgess on gypsophila (Gypsophila paniculata ) and bean (Phaseolus vulgaris) leaves, and the development times of the immature stages on these plants. The absolute number of punctures per leaf area was much greater on bean leaves than on gypsophila leaves. The number of mines per leaf was also higher on beans than on gypsophila, but the ratio of mines/punctures was higher on gypsophila. Gypsophila leaves were punctured on both sides, but most of the punctures were on the distal third of the upper leaf side. On beans the punctures were dispersed uniformly on the upper side of the leaf. The larval period (±SE) at temperatures of 20, 25 and 30°C was 9.9±0.2, 4.4±0.1 and 3.7±0.1, and 5.5±O. l, 3.7±0.1 and 2.4±0.1 days, on gypsophila and bean, respectively. The pupal period at 17, 20, 25 and 30°C lasted 19.9±0.2, 14.7±0.1, 10.4±0.1 and 7.8±0.1 days, respectively. © 1989 Springer Science + Business Media B.V.
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