EFFICACY OF NEEM-AZAL S AND MARGOSAN-0 AGAINST THE BEAN APHID, APHIS-FABAE SCOP

被引：13

作者：

DIMETRY, NZ ^{[1
]}

SCHMIDT, GH ^{[1
]}

机构：

[1] UNIV HANOVER,FACHBEREICH BIOL,LEHRGEBIET ZOOL ENTOMOL,HERRENHAUSER STR 2,W-3000 HANNOVER,GERMANY

来源：

ANZEIGER FUR SCHADLINGSKUNDE PFLANZENSCHUTZ UMWELTSCHUTZ | 1992年 / 65卷 / 04期

关键词：

D O I：

10.1007/BF01906393

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Margosan-0, a commercial preparation of neem seed kernel extract was tested for its effects as toxicant, deterrent and sterilant against the bean aphid Aphis fabae and compared with the German product Neem-Azal S. Second and 4th nymphal instars of A. fabae, placed on bean plants treated with different concentrations of Margosan-0 or Neem-Azal S, were adversely affected and very high percentage of mortality occurred after 96 hours. In a choice test, higher numbers of adults settled and larviposited on plants treated with Margosan-0 in comparison to the control. Neem-Azal S treated plants showed high deterrence to the adults at high concentrations. The deterrent effect was reflected in a reduced larviposition. Plants treated with different concentrations of either Neem-Azal S or Margosan-0 significantly affected the longevity and fecundity of A.fabae. The efficacy of Neem-Azal S is more pronounced than that of Margosan-0.

引用

页码：75 / 79

页数：5

共 20 条

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