점박이응애(거미강:진드기목)의 행동에 관한 연구 = Studies on behavior of two-spotted spider mites

다국어 초록 (Multilingual Abstract)

The two-spotted spider mites feed on various host plants, both wild and cultivated. This investigation was accomplished to understand behavior of two-spotted spider mites.
Overwintering female mites were collected from apples from Jan. 5 to Feb. 11, 1993. Most apples (26 out of 33 apples) had two-spotted spider mites. The mean number of detected mites were 83.4 individuals per apple.
After rearing several generations on bean leaves, the mites were used to test phototaxis. They showed slight positive phototaxis in adult stage, but no differences in their nymphal or larval stages.
We put mites on leaf discs specially designed to test host preference and observed their movements. As a result, it appeared that the mites prefer pea or acacia than any other host, and avoid ginkgo or mint.
Comparing microscopic surface structures of tested plant leaves, host preference of two-spotted spider mites seemed due to chemical factors rather than physical factors.