EFFECT OF MALATHION ON FECUNDITY, LONGEVITY, AND GEOTROPISM OF MENOCHILUS-SEXMACULATUS (COLEOPTERA-COCCINELLIDAE)

被引：4

作者：

PARKER, BL ^{[1
]}

MING, NS ^{[1
]}

PENG, TS ^{[1
]}

SINGH, G ^{[1
]}

机构：

[1] UNIV VERMONT, AGR EXPTL STN, BURLINGTON, VT 05401 USA

来源：

ENVIRONMENTAL ENTOMOLOGY | 1976年 / 5卷 / 03期

关键词：

D O I：

10.1093/ee/5.3.495

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Malathion was topically applied to 24-48 h old Menochilus sexmaculatus (F.) adults [predators of maize-infecting aphids]. The 24-D LD50 was about 0.061.gamma./beetle. Virgin females laid fewer eggs than mated females but fecundity was not affected by frequency of mating. Sublethal dosages of malathion had the greatest effect on fecundity at the higher doses used. Although the longest lifespan was recorded for beetles receiving the highest dosages of toxicant, the other treatments showed reduced longevity with increased toxicant concentration. A reduction in the viability of eggs laid by treated beetles was related to the age of the female and the toxicant dosage applied. The geotropic response of treated beetles in a test chamber was similar to the response of untreated individuals.

引用

页码：495 / 501

页数：7

共 31 条

[1]

ABOELGHAR MR, 1972, J ECON ENTOMOL, V49, P476

[2] GRAIN APHIDS IN NEW BRUNSWICK .3. APHID POPULATIONS IN HERBICIDE-TREATED OAT FIELDS [J].