摘要
板栗受桃蛀螟的危害十分严重，受害率可达２９％。用４０％氧化乐果３倍液于８月中旬涂干，防治效果达７６．５％以上，防治成本为３４．８元／ｈｍ￣２，净增板栗７７．５ｋｇ／ｈｍ￣２。
Chinese chestnut fruit was damaged by Dicjhocrbcis punctiferalis in zhuji City of Zhejiang Province with 29%of injury.Control could be madeat the larval stage in the second ten days of August by brushing trunk with3-fold solution of omethoate 40EC,resulting in more than .5%of thelarvae being killed,and the seeds being increased by 77.5 kg per hectare.The control cost avaraged 34.8 yuan RMB per hectare.
出处
《浙江林学院学报》
CSCD
1995年第3期325-328,共4页
Journal of Zhejiang Forestry College
关键词
板栗
桃蛀暝
药剂防治
氧化乐果
Chinese chestnut
Dichocrocis punctiferalis
chemical control
