全南 地域의 밤나무 害虫調査(第一報)

다국어 초록 (Multilingual Abstract)

1. About 133 species of insects belonging to 45 families of 5 orders are recorded as the
hamful insects to chestnut in Korea. A total of 52 species of 26 families of 5 orders
attacting chestnut were collected in Chonnam Province, of which Autoserica castanea
W. Cryptothelea formoscicola S.. and Archips fuscocupreana W. were the ones not
listed in the records.
2. The major pests to chestnuts in Chonnam Province were found to be 8 species of insects
and one species of mite. but the peach pyrolied moth, Dichocrosis punctiferalis G. is
considered to be the most destructive one.
3. Chestnut curculio, Curculio dentipes R. was abundantly distributed over the counties
of Gwangyang, seungju, Damyang. and Gwangsan, but it was very rare in other counties.
4. Fruit drop due to pyralid moth peaked around the end of July in a peach cultivar of
Pomokioseang, while this damage was most severe during August 10 to 15 in other two
cultivars, Hwangdo and Baekdo.
5. The peach pyralid moth had its first maximum emergence around June 10 and the second
on around the end of July.
6. Infested nuts usualy contained 1 larva(48.0%), but there were some nuts infested by as
much as 5 to 6 larvae. The difference in insect damage among cultivars grouped by
maturing time was not noticed. The fruit damaging insects in chesnuts were mostly
peach pyralied moth(73.5%), and the others were chestnut curculio(15.4%) and nut
fruit tortrix. Cydia splendana H. (l1.9%).
7. Insect emerging holes were most frequently found at the ventral pericarp(27. 7%) and
leat at the stigma(0.7%) when the nut is devided into 8 parts.
8.The results of chemical applications with 8 insecticides(Kayahos, EPN, DDVP, Elsan,
Sumithion, Lcbaycid, Dipterex, and Padan) at 3 different times(July 27, August 21, and
September 13) showed that all the tested insecticiedes were nearly equally effective but
the August 21 was the best time to apply chemicals among the three dífferent times
to control the chestnut insects.

목차 (Table of Contents)

• 緖論 2
• 調査地域 및 方法 2
• 結果 및 考察 3
• 摘要 10