Study on biology of mango hopper "Idioscopus clypealis Letheirry" (Hom: Cicadellidae) in Hormozgan Province.
Pezhman H., Radjabi G. H.
Author Affiliation: Date Palm and Tropical Fruits Research Institute, P.O. Box. 61355-16, Ahwaz, Iran.
Applied Entomology and Phytopathology 70 : Pe1-Pe11, 1-2
Abstract : During 1996-97, the biology of mango hopper (I. clypealis) was investigated by weekly sampling and use of sleeve cages in mango orchards in Minab and Siahoo regions in Hormozgan province. It showed that one of the most serious pests of mango trees specially during the flowering season was mango hopper. It was the main factor of crop losses in southern parts of Iran in recent years. Nymphal damage was found on the inflorescence only, leading to wilting of flowers and death. Fruit setting was also inhibited and young fruits fell off. The eggs were laid in flower buds and tissues of panicle during flowering season. The incubation and nymphal period of the pest were estimated between 9 and 17, and 20 and 24, days respectively, under natural condition of Minab and Siahoo conditions. The mango hopper had one generation a year. Overwintering was observed in adult stage, mostly on mango trees. Maximum and minimum population density of the pest occurred during flowering season (March, April and May) and cold months (January and February), respectively.