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与常规稻田相比 ,稻渔 (蟹 )共作稻田纹枯病、稻飞虱及稻纵卷叶螟等发生危害均较轻 ,条纹叶枯病发生略重于常规稻田 ,三化螟发生较为严重 ,草害发生较轻。稻渔 (蟹 )共作稻田具备较多农业防治的便利条件 ,耕翻灭茬、春季灌水可有效压低越冬及冬后三化螟残留基数 ;选用抗病避虫品种可有效抵御条纹叶枯病等常见病虫的危害。在药剂防治方面 ,应注重浸种与秧田期防治 ,狠压移栽前病虫基数 ;在大田期放松对次要病虫害的防治标准 ;乙酰甲胺磷及其与印楝素复配使用 ,可有效防治三代三化螟。
Compared with the conventional paddy fields, rice-fishing (crab) co-production of rice sheath blight, rice planthopper and rice leaf roller are less harmful to the occurrence of stripe blight is slightly heavier than conventional paddy, Serious, grass damage occurred less. Paddy rice (crab) co-cultivated paddy fields have more convenient conditions for agricultural control, tillage and fumble stubble, spring irrigation can effectively reduce the winter and winter residues in the number of stem borer; selection of disease and insect repellent varieties can effectively resist the striped leaf blight Harm of common diseases and pests. In the chemical control, should pay attention to seed soaking and seedling control, relentless pressure before transplanting pest base; in the field to relax the secondary pests and diseases prevention and control standards; acephate and azadirachtin used in combination, can be effective Prevention and control of three generations of Borer.