Effect of certain agricultural practices on population density of the red striped soft scale, pulvinaria tenuivalvata (newstead)‎ (homoptera : coccidae)‎

الملخص EN

The present investigation was carried out to study the efficiencies of agricultural practices i.e.

rowing space, fertilization, irrigation system, ratoons, varieties and host range on the population density of red striped soft scale, Pulvinaria tenuivalvata (Newstead) at Nagada, Armant and Luxor City, Qena governorate during two successive seasons 2002 and 2003 where the results clearly showed that planting sugarcane on 7 rows space, using the recommended nitrogen fertilizer 200 units with 100 kg potassium per feddan, using modern irrigation, and choosing PH 8013 variety were considered the proper agricultural practices which decreased the population of P.

tenuivalvata, and resulted in the increasing of both sugarcane yield and juice.