SYNOMONE-MEDIATED INTERACTIONS BETWEEN THE PARASITOID DIAERETIELLA-RAPAE AND BREVICORYNE-BRASSICAE UNDER FIELD CONDITIONS

被引:28
作者
TITAYAVAN, M [1 ]
ALTIERI, MA [1 ]
机构
[1] UNIV CALIF BERKELEY,DIV BIOL CONTROL,BERKELEY,CA 94720
来源
ENTOMOPHAGA | 1990年 / 35卷 / 04期
关键词
DIAERETIELLA-RAPAE; CABBAGE APHID; BIOLOGICAL CONTROL; ALLELOCHEMIC; SYNOMONE;
D O I
10.1007/BF02375084
中图分类号
Q96 [昆虫学];
学科分类号
摘要
An interaction apparently mediated by synomones (Nordlund et al., 1981) between Diaeretiella rapae (M'Intosh), a primary parasitoid and the cabbage aphid, Brevicoryne brassicae (L.), was investigated under field conditions. Direct application of an allylisothiocyanate emulsion at a rate of 0.25 ml per broccoli plant consistently gave higher aphid parasitization rates and/or number of wasps per plant than those observed on plants treated with 0.25 ml of water or with 0.25 ml of wild mustard extract. These results suggest the existence of a synomone-mediated interaction between the species involved, indicating potential avenues to enhance field parasitization rates through manipulation of the chemical environment of cole cropping systems.
引用
收藏
页码:499 / 507
页数:9
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