甘藷土壤害蟲藥劑防治試驗
Other Title
Chemical Control Study of Soil Insect pests of Sweet Potato
Journal
植物保護學會會刊
Journal Volume
8
Journal Issue
1
Pages
90-93
ISBN
0577-750X
Date Issued
1966-03
Date
1966
Author(s)
張良傳
Liang-chuan Chang
Abstract
There are 3 species of soil insets namely Cylas formicarius Fabricius, Corasposoma oberthuri Jacoby and Anomala expansa Bates attacking sweet potato tubers, especially the first 2 species which are the worst and reduce the commodity in both quantity and quality significantly.
This test was carried out from February of 1963 to March of 1964 at Tainan and Ilan. 35% aldrin wp, 25% aidrin granular and 2.5% heptachior dust were used as the soil insecticides. The dosage was calculated as 0.5, 1.0 ppm of aidrin and 0.36, 0.54 and 0.73 ppm of heptachior of active ingredient respectively.
The applying method of these 2 kinds and 3 forms of soil insecticides were divided into (1) broadcasted whole area before planting, (2) broadcasted on planting row only before planting and (3) treated on row furrow then covered with soil and planting respectively.
According to the test, it showed that broadcasted whole area of the field with 1 ppm of aidrin cooperated with water, sand and rice husk or 25% aidrin granular. The percentage of reduced tuber yield was below 1.16%, the row furrow treatment was below 3. 0896. However, the check was 26. 04-35.88% respectively.
Subjects
甘藷土壤害蟲藥劑防治試驗
Chemical Control Study of Soil Insect pests of Sweet Potato
Publisher
植物保護學會
Type
journal article
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