再生稻控制稻瘿蚊机理的研究

STUDY ON THE CONTROL MECHANISM OF PADDY AGAINST ORSECLIA ORYZAE

研究了再生稻生育特性及其对稻瘿蚊控制的影响。探讨了再生稻不同播种期、再生稻株形结再构、越冬后虫源量对稻瘿蚊的影响作用。研究结果表明 :稻瘿蚊在再生稻上的短暂侵入期短再生稻控制稻瘿蚊的主要原因 ;再生稻株形结构限制了稻瘿蚊的侵入量 ;

The paper deals with the paddy biology to reveal its potential as control agents against Orseclia oryzae. The influence of seedtime and plant figure of paddy and overwinter insect numbers on O. oryzae were studied. The result shows that the paddy characteristic of controlling O.oryzae mainly contributed to the shorter infecting time of the insect. The plant figure could restrict the insect infecting number though the overwinter-insect numbers and paddy seedtime should also be considered.