אסיף מאגר המחקר החקלאי

Effect of some benzoylphenyl ureas on earias insulana eggs of different age

Year:

1987

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Volume :

15

Co-Authors:

Meisner, J.
Ascher, K.R.S.
Assi, F., Dept. of Toxicology, ARO, Volcani Center, Bet Dagan, Israel
Assi, F., Dept. of Toxicology, ARO Volcani Center, Bet Dagan, Israel

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Abstract:

Diflubenzuron, PH 60–43, PH 60–45, penfluron(PH 60–44) and triflumuron were assayed by a dipping technique for their toxicity to Earias insulana (Boisd ) eggs of different age Testing at a screening concentration of 0 1% a 1 showed that diflubenzuron, triflumuron and PH 60–43 were highly active, whereas PH 60–44 and PH 60–45 were nearly inactive With triflumuron the mortality of 0-1-day-old eggs was >90% even at 0 005%, at 0 001% it was 50% In 1-2-day-old eggs, a >90% kill was obtained even at 0 0005%, whereas at 0 00025% it was 86% PH 60–43 was also highly active, at 0 01% the kill of 0-1-day-old eggs was >90% Again, this rate of kill was obtained with 1-2-day-old eggs at a still lower concentration, 0 005% Both compounds were inactive against 2-3-day-old eggs, even at 0 1% © 1987, Springer Science + Business Media B.V.. All rights reserved.

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