Injury symptoms and control of two spider mite species: Tetranychus urticae and T. cinnabarinus occurring on cucumbers and tomatoes
1993
Szwejda, J. (Instytut Warzywnictwa, Skierniewice (Poland))
The economical meaning of pests on vegetable crops cultivated in greenhouses and plastic tunnels in Poland, have two spider mite species: Teranychus urticae Koch and T. cinnabarinus (Boisd.). Based on the injury they caused to leaves of cucumber and tomato, it was possible to identify both spider mite species. Some tomato varieties have been found to be more susceptible were the following cultivars: Corindo and Romato, but the least susceptible cultivar - Billy. In the experiments with chemical control of both spider mite species, the following compounds gave the best results: fenpyrad, acrinatrin, diefenthiuzon, abamectin and AC 303,630. The percent of mortality reached more than 98
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