Effect of neemazal, spinosad and dimilin on some biological and physiological activities of pink bollworm, Pectinophora gossypiella (Saund.)
2006
Rashad, Amira M. | Huwaidi, Muna A. | Qandil, Mirvat M.
Laboratory experiments were directed to study the effect of three compounds, neemazal T/S (1%), spinosad and IGR diflubenzeron (dimilin) on the fecundity, fertility and longevity of PBW Pectinophora gossypiella (Saund.) adult females. Also, biochemical analyses were conducted to show the effect of the different compounds on adult females and males. Results showed that the pre-oviposition periods were 4.1, 2.7, 3.0 and 3.57 days for females treated by neemazal, spinosad, dimilin and control, respectively while, the average period of oviposition were 10.96, 8.85, 18.47 and 15.38 days, respectively. The mean numbers of eggs laid by all treated females were decreased than the untreated, the total number of eggs were 131.2, 104 and 154.38 for treatments compared with 190.66 in untreated, the reduction in number of eggs laid ranged between (30.4-52.0%). The biochemical analysis of treated adults showed high reduction in total content of heamolymp h proteins and lipids, GOT and GPT enzymes activities were increased in all treatments while, carbohydrate enzymes were fluctuated.
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