Abstract
Interspecific Competition Between Granary Weevil
The effect of food source on the outcome of interspecific competition between rice weevil, Sitophilus oryzae, and granary weevil, Sitophilus granariusand the food source effect on the competitive ability of both species and the effect of interspecific competition on the growth rates of both species were studied in barley, oats, rice and wheat at 27 °C and 70% R.H. by using the replacement series approach. This study predicts that the successful species in interspecific competition in all cereals was the rice weevil regardless of food source while the competitive ability of both species changed according to food source and the growth ratesof both species were reduced by competitive interactions.
Keywords
Interspecific competition food growth rate rice weevil granajy weevil Sitophilus
