Return to Publications List ` [Navigate to MAIN MENU ]
1.
Updated 2024 from: Legner, E. F.
1958. Some effects of aldrin, chlordane,
dieldrin and heptachlor on the European earwig. M. S. Thesis, Utah State University. 56 pp. Title Page Acknowledgments Contents Tables & Figures Introduction
SUMMARY
Tests to determine both
residual action and initial kill of aldrin,
chlordane, dieldrin and heptachlor were conducted at three separate dosages
under variable outdoor insectary and controlled greenhouse conditions, and
with limited field tests using single dosages of granular formulations. All chemicals used in the field tests
showed highly effective results although distinct differences did not exist
between them. Initially, the quickest kill was obtained with heptachlor and
dieldrin, but at the end of six days, the results of all four chemicals were
comparable. Laboratory experiments revealed that dieldrin was the most
effective in producing the highest kill, and was followed by aldrin,
heptachlor and chlordane in descending order of effectiveness. As far as residual life is
concerned, dieldrin ,surpassed all others, followed by aldrin and chlordane.
The shortest exposure time was needed with heptachlor and aldrin. Chlordane
was the weakest in this respect. It was found,
however, that in order to accurately judge the effectiveness of any particular
one of these chemicals in relation to all or any of the others, consideration
of the atmospheric conditions, the life stage of the earwigs, and the length
of time that earwigs were in direct contact with the chemical, was a
necessity. Page Number References #1
#2 #3
Table 1 Table 2 Table 3-4 Table 5 Figure 1-2 Fig.
3-4 Fig.
5-6 Fig.
7-8 Fig.
9-10 Fig.
11-12 Fig.
13-14 Fig.
15-16 Fig. 17-18 Fig. 19-20 Fig. 21 Fig. 22-23 Fig. 24-25 Fig. 26-27 Fig. 28-29 Fig. 30-31 Fig. 32-33 Fig. 34-35 Fig. 36-37 Fig. 38-39 Fig. 40 |
[
Please refer also to
Related Research ]