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The hawthorn spider mite (Tetranychus viennensis Zacher) and two-spotted spider mite (Tetranychus urticae Koch) accepted all 13 apple cultivars given to them. The hawthorn spider mite most rapidly began permanent feeding on the apple cultivars: Priam, Witos, Pionier and Freedom. The two-spotted spider mite behaved similarly, but on the cultivars Romus, Primula, Florina and Lodel. The time of permanent...
Females of the hawthorn spider mite (Tetranychus viennensis Zacher) showed the highest fecundity on the apple cvs. Novamac (29.0 eggs) and Freedom (28.0 eggs), whereas the least number of eggs laid out by tchem was found on the cvs. Primula (18.6 eggs), Lodel (22.5 eggs) and Pionier (25.7 eggs). Females of the two-spotted spider mite (Tetranychus urticae Koch) oviposited the largest egg numbers on...
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