|Title:||蔥薊馬粒狀殺蟲劑之防治試驗||Other Titles:||Soil Treatment with Granular Insecticides against Onion Thrips, Thrips Tabaci Lindemen||Authors:||張良傳
|Issue Date:||5-Dec-1973||Publisher:||農業試驗所||Journal Volume:||22||Journal Issue:||4||Start page/Pages:||285-289||Source:||農業研究||Abstract:||
蔥薊馬是蔥、韮、蒜等石蒜科蔬菜之重要害蟲，在本省多於低溫期9月至翌年4月間發生為害，被害嚴重之葉多數呈發育不良、萎縮，甚致枯死，故影響產量甚鉅。本試驗採用8種粒狀殺蟲劑，處理定植溝土壤，每種藥劑分二種藥量，即每公頃有效成分1.0及1.5公斤，施藥後立即定植蔥苗，經30、50、70及90天調查潛蠅之為害率。結果除Dyfonate藥效較差外，其他各處理均有良好效果，惟高藥量（1.5公斤／公頃）比低藥量（1.0公斤／公頃）之藥效為佳，同時藥劑間以Thimet與Cyolane比其他藥劑Disyston, Solvirex, PSP 204, Perfekthion及Hosdon之藥效長，前者約可維持90天左右，後者約可維持40天左右。
Onion thrips (Thrips tabaci Lindemen) is a major insect pest of Green onion, Chinese leek, Onion, Garlic and other Amaryllidaceae crops in Taiwan. Parathion, PM, or EPN sprays are frequently used by the farmers in the cooler season during October to next April every year. However, the control expenses seems rather high because of repeat applications, long growing period of green onion or other Amaryllidaceae crops have to be applied every 7-10 days during the 4 growing months.
The test was conducted at Hsiang-Shan, Hsin-Chu from October 1970 to next February, 1971, to determine the effectiveness of soil treatment between 8 different granular insecticides for the control of onion thrips on Green onion. Rates of 1.0 and 1.5 kg a. i. per hectare were tested respectively for each granular insecticides and the total 16 treatments and one control were designed. Randomized Complete Block Design four replications. The insecticides were applied into furrow of ground before planting. Percentage of infestation were counted on 30. 50. 70. and 90 days after treatment. Tested crop was harvested on February 20, 118 days after planting and then counting the yield.
The results indicated that all of the insecticides except for Dyfonate G. could give effective control of Onion thrips. The higher dosage of the same tested insecticide, the better control of the target insect. For instance, at the rate of 1.5 kg a. i. / ha. Disyston 5G., Solvirex 5G., PSP204 5G., Perfekthion 5G., and Hosdon 5G., all gave significant difference than the lower rates as 1.0kg a. i. /ha. respectively. However, the best result obtained from the treatment of Thimet 10G. and Cyolane 10G, at rate of 1.0kg a. i. /ha were found as well as the highest rate of other insecticides and moreover. It can be concluded as the application of these two granular insecticides will he proved to be good for the insect pest during the long growing season, because of the lower cost of application and higher yield. The yield of all treatment plots have shown 8.20-72.49% more than the untreated plots.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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