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Laboratory tests on mating competition between thiotepa‐sterilised and normal males of the potato moth, Phthorimaea operculella (Lepidoptera: Gelechiidae)
Author(s) -
NABI M. N.,
HARRISON R. A.
Publication year - 1984
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1984.tb03023.x
Subject(s) - phthorimaea operculella , biology , gelechiidae , lepidoptera genitalia , mating , thiotepa , mating disruption , fumigation , fecundity , botany , pest analysis , longevity , sterility , sterile insect technique , horticulture , sex ratio , toxicology , zoology , population , genetics , demography , chemotherapy , sociology , cyclophosphamide
SUMMARY Male potato moths less than 24‐h‐old were sterilised in fumigation chambers in the laboratory with one of three concentrations of thiotepa 0·05, 0·075 and 0·1 g at either 25 or 30°C. Sterile males were associated with untreated virgin males and virgin females in the ratios of 1:1:1, 2:1:1, 4:1:1 and 1:0:1. The sterile and normal male contingents were placed with a single female. The percentage of egg hatch after mating decreased with the increase of concentration and the sterile male ratio. Sterile males were competitive in mating and their longevity was not adversely affected in comparison to the control groups.