| Title: | Multiple mating of male and female codling moth (Lepidoptera: Tortricidae) in apple orchards treated with sex pheromone |
| Address: | "Yakima Agricultural Research Laboratory, Agricultural Research Service, USDA, 5230 Konnowac Pass Rd., Wapato, WA 98951, USA. aknight@yarl.ars.usda.gov" |
| DOI: | 10.1603/0046-225x(2007)36[157:mmomaf]2.0.co;2 |
| ISSN/ISBN: | 0046-225X (Print) 0046-225X (Linking) |
| Abstract: | "Studies were conducted with codling moth, Cydia pomonella L., to evaluate the mating status of male and female moths in apple, Malus domestica (Borkhausen), orchards treated with and without sex pheromone dispensers. Laboratory studies first examined the effect of multiple mating of male and female moths on female fecundity and egg fertility. Females that had mated three times had a significantly higher fecundity than singly mated moths. Sequential mating by male moths had no effect on the fecundity of female moths or egg fertility. However, male moth age did impact female fecundity, with significantly fewer eggs laid after mating with virgin 1- versus 3-d-old males. The mean size of the first spermatophore transferred by males was significantly larger than all subsequent spermatophores. Classifying spermatophores based on size was used in field sampling to categorize the mating status of the female's partner. The proportion of mated females with small spermatophores (partner had previously mated) was significantly higher in treated versus untreated orchards. The proportion of female moths caught in traps baited with pear ester that were virgin was low ( |
| Keywords: | "Age Factors Animals Female Fertility Male *Malus Moths/*drug effects/physiology Ovum/physiology Sex Attractants/*pharmacology Sexual Behavior, Animal/*drug effects;" |
| Notes: | "MedlineKnight, A L eng Research Support, Non-U.S. Gov't England 2007/03/14 Environ Entomol. 2007 Feb; 36(1):157-64. doi: 10.1603/0046-225x(2007)36[157:mmomaf]2.0.co; 2" |
