The effect of an integrated pest management programme on the arthropod populations in a hungarian apple orchard
1997
Jenser, G. | Balazs, K. | Erdelyi, Cs. | Kozar, F. | Racz, V. | Samu, F. (Hungarian Academy of Sciences, Budapest (Hungary). Plant Protection Inst.) | Haltrich, A. | Marko, V.
Comparative investigation on integrated pest management in an apple orchard was carried out for three years. Significant changes in the structure of the phytophagous and zoophagous population communities have been observed. The meaningful tendencies of this process are presented and discussed. Owing to the regular application of selective insecticides the population density of the parasitoids and predators increased and at the same time the density of the leaf rollers (Archips rosana, Pandemis heparana), leaf miners (Phyllonorycter balancardella, Ph. corylifoliella) and tetranychid mites (Panonychus ulmi, Tetranychus urticae) decreased. The density of pear tingid (Stephanitis pyri) and San Jose scale (Quadraspidiotus perniciosus) rose.
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