臺灣二化螟發生猖獗誘因之研究
Other Title
Studies on the Outbreack Factors of Striped Rice Borer Chilo suppressalis Walker in Taiwan From 1954 to 1965
Journal
植物保護學會會刊
Journal Volume
8
Journal Issue
4
Pages
407-436
ISBN
0577-750X
Date Issued
1966-12
Date
1966
Author(s)
陶家驊
Chia-hwa Tao
Abstract
(一)二化螟（Chilo suppressalis Walker）在嘉南地區一年發生6世代，第1世代最短66天，最長82天，平均74.4±1.22天(溫度平均20.2±O.18℃，濕度73.8±0.06%，降雨量84.2±2.42mm)；第2世代最短45天，最長57天，平均49.9±1.36天(溫度平均25.9±0.04℃，濕度70.7±0.11%，降雨量180.9±9.23mm)；第3世代最短38天，最長57天，平均47.6±0.88天（溫度27.7±0.93℃，濕度70.2±0.07%，降雨量629.5±20.23mm)；第4世代最短35天，最長57天，平均44.1±1.18天(溫度平均27.5±0.02℃，濕度69.7±0.19%，降雨量837.2±1.44mm)；第5世代最短46天，最長60天，平均53.1±0.95天（溫度26.6±0.05℃，濕度66.8±0.10%，降雨量85.3±0.44mm；第6世代最短61天，最長126天，平均94.5±2.74天(溫度平均21.3±0.71℃，濕度82.2±0.71%，降雨量71.55±0.06mm)。繁殖後裔率以第1及第5兩世代最低7.8~9.6%，第2、3、4及6四個世代最高，達13,5~18.9%，其中以第3世代最高佔18.9%，其他各世代所差異甚少。
In recent years, the striped rice borer, C. suppressalis Walk. has been a serious pest of rice crop, and its infestation in the first rice crop is usually more injurious than in the second one. Consequently, heavy damage caused by both 1 st and 2nd generation to this crop alone was on boot and heading stage under prevailing climatic conditions. In 1963, loss of rice in yield was estimated about 30 to 50 per cent. Since the borers were obstinate to survive during the low temperature and dry season when the weather was of around 16.8℃ & 41.2 mm of precipitation from December through March, and of 25.8℃ & 19.2 mm from April to May.
Subjects
臺灣
二化螟
Publisher
植病保護學會
Type
journal article
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