Persad, A., & Khan, A. 2000 The effect of five insecticides on Maconellicoccus hirsutus (Homoptera: Pseudococcidae) and its natural enemies Anagyrus kamali (Hymenoptera: Encyrtidae), and Cryptolaemus montrouzieri and Scymnus coccivora (Coleoptera: Coccinellidae).. International Pest Control 42(5): 170-173.
Notes: Five commonly used insecticides, lambda-cyhalothrin, pirimiphos-methyl, triazophos, fipronil and decamethrin [deltamethrin] were evaluated in the laboratory and under semi-field conditions for comparative effects on the pink mealybug Maconellicoccus hirsutus and its exotic natural enemy complex. Adult M. hirsutus were more tolerant to all insecticides tested while the 1st instar stage was least tolerant. Chemical control was best achieved using either pirimiphos-methyl or triazophos on the 1st instar stage. Anagyrus kamali was most susceptible to all insecticides tested. Fipronil provided the highest selectivity ratios when used together with Cryptolaemus montrouzieri and was also least persistent (LT50 value of 7 days) for A. kamali in the field.