複合交信攪乱設置リンゴ園におけるチョウ目害虫の果実加害時期と防除時期

抄録

Damage caused by fruit-infesting lepidopterous pests was investigated in mating-disruptor-treated apple orchards in the central region of Iwate Prefecture in 2007 and 2008. The level of fruit damage was highest from mid-May to June. Insecticide applications about 1 week after leafing（ late April）and around petal fall to 10 days after petal fall（late May）were effective in suppressing the damage caused by fruit-infesting lepidopterous pests.