Effect of multiple mating behavior of Grapholita molesta males on female fecundity
To study the mating ability and other biological characteristics of Grapholita molesta males and to accurately evaluate the field application effectiveness of G.molesta sex pheromone in killing males,monitoring equipment was used to observe the mating time periods,mating durations,mating frequencies and day-age of first and last mating of males,the effect of males day-age on mating rates,and the effect of male mating frequency on female oviposition and egg hatching rates.The results indicated that single male of G.molesta could mate with multiple females and could engage in mating with females ranging from one day-age to 19 day-age.With increasing day-age of male,the mating rate with female decreased,but an increase in male mating frequency did not influence egg yield and egg hatchability.In conclusion,using sex pheromones in the field to kill a certain number of males is helpful in reducing the number of offspring populations,but the ideal effects can only be achieved when the number of males is reduced in a short period of time.
万方数据
维普
