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1963年在湖南沅江及南县选择隣近的种植制不同的五个生产大队,調查对比、分析耕作栽培措施及其他生态因素,与三化螟种羣数量消长及为害程度的关系,探索最經济有效的稻螟防治策略和综合措施。各对比点結果一致証明,在同一地区相距不远的大队間,三化螟发生基数大小的悬殊差別,是决定当年发生数量及为害程度輕重的一个重要因素。在适当的面积(大队)上結合耕作栽培措施相当彻底地消灭三化螟越冬幼虫,不仅可控制第一、二代的为害,且对压低第三、四代的发生量和为害程度也有明显的作用。在此基础上如能进一步结合夏收灭茬連續压低虫源,更可加強对后期螟害的控制。螟害程度决定于水稻最易受害生育期与稻螟盛发期配合的程度和螟虫发生数量的綜合影响。因此,在农业防治方面,結合耕作栽培措施压低虫源及調节水稻生育期并恶化螟虫的生活条件,均应尽可能的利用。扩种双季稻对三化螟的发生为害有有利和不利的两面。在湘北滨湖稻区的情况下,可以結合双季稻的耕作栽培,連續压低虫源作为控制螟害的一項措施。在种植制复杂的稻区,中稻早栽既可避免第三代三化螟的为害,且可促使第二、三代三化螟更多地集中在小面积的迟中稻或单季晚稻上,有利于集中施药歼灭。稻螟的防治策略应以农业防治为基础,結合重点药治。在种植制复杂的稻区建議采取結合耕作栽培連續压低虫源、調节水稻生育期及恶化螟虫生活条件的各項措施并药治二代桥梁田,对三、四代进行重点药治。
In 1963, five different production units in neighboring planting systems were selected in Yuanjiang and Nanxian County, Hunan Province. Investigation and comparison were conducted to analyze the relationship between tillage and cultivation measures and other ecological factors, population growth and damage degree of the rice stem borer, and to explore the most economical Effective control strategy and comprehensive measures for rice borer. The results of all the contrast points proved that in the same area not far from the brigade, the base of the size of the stem borer disparities in the disparity between the size of the decision that year was an important factor in the severity and severity. In the appropriate area (brigade) combined with tillage and cultivation measures to destroy the overwintering rice stem borers larvae completely, not only can control the first and second generations of the damage, and to reduce the third and fourth generations of the amount and degree of damage are obvious effect. On this basis, if the summer harvest can be further combined with stubble down the source of insects, but also to strengthen the latter part of the pest control. The degree of stem borer is determined by the combined effect of the degree of coordination and the number of stem borers on the most susceptible stage of rice development and the development of rice stem borer. Therefore, in the aspect of agricultural prevention and control, the combination of tillage and cultivation measures to reduce the source of insects and adjust the rice growth period and to deteriorate the living conditions of stem borers should be used as much as possible. Expanded double cropping rice borer on the occurrence of damage both positive and negative sides. In the case of the Xiangbei Binhu lakeshore, combined with the cultivation and cultivation of double cropping rice, the insect pest can be continuously depressed as a measure to control the pest damage. In the complicated planting area of rice, the early planting of middle-season rice can avoid the damage of the third generation BOP and promote the second and third generations of BOPs to concentrate more on small-area late-season or single-season late rice Benefit from the centralized application of drugs annihilated. Rice stem borer prevention and control strategies should be based on agricultural control, combined with key drugs. In the complicated planting area of rice, it is suggested to adopt measures that combine cultivation and cultivation to continuously reduce the insect source, regulate the growth period of rice and worsen the living conditions of stem borers, and administer the second generation bridge fields to carry out the key drug treatment to the third and fourth generations.