Regenerative rice pests and diseases control measures

Characteristics of pests and diseases of ratoon rice:
(1) Self-contained bridges. The 30-40 cm long rice piles left after the harvest of the first season of the regenerated rice are the transitional points for most of the pests and can be easily transferred to the second season. Become the effective insect disease source in the second quarter.
(2) Increased by generation. Due to the long growth period of the regenerated rice, the diseases and pests can be bred for an annual event, the transition is smooth, and the number of bases continues to increase. Therefore, the occurrence of pests and diseases often tends to increase from generation to generation.
(3) Prolific breeding, with thick stems and leafy leaves of the regenerated rice and shaded fields, the rice plants are rich in nutrients, which is conducive to the growth and reproduction of various pests, and is conducive to the aggregation and spawning of pests.
Control measures for pests and diseases of ratoon rice:
According to the occurrence characteristics of renewable rice diseases and pests, it is necessary to do “early” and “comprehensive” in prevention and control, and to prevent rice blast and stem borer at the seedling stage, to prevent stem borer and sheath blight at the tillering stage, and to produce booties. In order to prevent the rice planthoppers, the prevention and treatment of pests and diseases of ratooning rice must pay particular attention to the control of sheath blight and rice planthoppers.
(1) Seed treatment. Sowing before sowing for 1-2 hours, then water selection to remove some cereals and sick seeds; Pharmaceutical treatment: use 10% of the soaking EC according to the use of 2ml of water 8kg soaking 6kg, time is 24-28 hours, or Other chemicals such as strong chlorine extract soaking (2) Putian to do a good job to send the drug. 3-5 days before transplanting, 75% tricyclazole WP50g plus 40% triazophos EC 100ml/mu, 40-50kg water spray (3) agricultural control. (I) Selection of disease-resistant varieties (II) to salvage slag, when the soil surface is floating there are a lot of sclerotia of Rhizoctonia solani, it should be cleared out of the field (IV) scientific fertilization, adequate base fertilizer, timely fertilizer, avoid excessive over-fertilization (V ) timely field.
(4) Anti-moistening. During the critical period of prevention and control of a strain of S. japonicum, attention should be paid to the preservation of seedlings. Prevention and control should take into account the prevention and control of sheath blight (5) In addition to control of pupae. In mid-June, the infestation of migratory locusts was investigated and the pests were promptly controlled. The prevention and control of this disease was directly related to the success or failure of ratooning rice.
(6) Picking and treating various pests in the later period.

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