Ismail, A.I., & Abdalla, E.R. 2001 Efficiency and residual activity of some selective compounds against Asterolecanium pustolans (pustulans? Cock. and Ceroplastes rusci L. infesting fig trees.. Annals of Agricultural Science (Cairo) 46(1): 355-364.

Notes: Field experiments were conducted in north Sinai, Egypt to evaluate some environmentally benign compounds (buprofezin, petroleum oils viz. Super Royal and kz oil, essential oils from Salvia sclarea, Ocimum basilicum and Mentha viridis (Mentha spicata) and chlorpyrifos) against certain pests infesting fig orchards, Ficus carica. The treatments were able to arrest the development of nymphs and consequently, the emerged females were significantly suppressed. The insect growth regulator, buprofezin was the most effective compound against the pustule scale insect, A. pustulans followed by S. sclarea, Super Royal and kz oils, where the reduction in infestation reached 62.3, 49.2, 47.5 and 46.0%, respectively, throughout the whole 3 months of experiment. Adding 2.5% S. sclarea oil to the lower concentration of buprofezin (0.025%) displayed potentiation effect that destroyed the waxy scale, C. rusci population by about 87.5% and slightly exceeded the respective value for chlorpyrifos (84.3%). It should be noted that C. rusci population was more susceptible to all treatments either applied individually or in mixtures, than A. pustulans.