Pesticide applying control method for susceptible diseases of Mammoth gold under acid soil condition

Abstract

The invention discloses a pesticide applying control method for susceptible diseases of Mammoth gold under acid soil condition, and belongs to the technical field of tobacco planting. The pesticide applying control method comprises the steps of improving soil with quick lime at the stage of preparing soil for ploughing and sowing, during simultaneous control, and simultaneously applying medicamentfor controlling phytophthora parasitica var. nicotianae and rhizoctonia solani Kuhn and medicament for controlling meloidogyne spp. to lands for growing field crops in different growing stages. Special control on fusarium axysporum is performed from the stage of placing plates to rosette stage. During alternative control, medicament for controlling alterna ria alterna ta and medicament for controlling Pseudomonas syringae pv. Tacaci are alternatively applied to the lands for growing field crops from the vigorous growing stage, wherein the time intervals for applying the medicament each time is 7-10 days. According to control risk degrees, the number of applying numbers of the control medicament is adjusted during simultaneous control, special control and alternative control, and accordingto the disease generation kinds, the kinds and the applying manners of the control medicaments can be adjusted in the total growth stage of the tobacco plants. The medicament applying control methodcan perform pinpoint control on various susceptible diseases in the planting process of the Mammoth gold, and the effect is notable.

Description

technical field [0001] The invention belongs to the technical field of tobacco planting, and in particular relates to a pesticide application prevention and control method for susceptible diseases of safflower and Dajinyuan. Background technique [0002] Honghua Dajinyuan is a well-known high-quality tobacco leaf throughout the country, a typical representative of sweetness and fragrance, and an indispensable raw material for the national well-known trademark "Yunyan". However, the Honghua Dajinyuan variety is also a well-known "difficult to plant and difficult to roast" flue-cured tobacco variety. One of the reasons for the difficulty in planting is that "prevention and control of susceptible diseases" is quite difficult. Due to the poor resistance of the safflower Dajinyuan variety, it is susceptible to black shank ( Phytophthora parasitica var. nicotianae ), tobacco root rot ( Thielaviopsis basicola ), blight ( Rhizoctonia solani Kühn ), Fusarium wilt ( Fusarium ...

AI Technical Summary

Problems solved by technology

The incubation period of early diseases is different, and the incidence peaks overlap, and the occurrence of diseases such as black shank and wildfire may also occur due to the influence of rain, and there may be multiple small peaks, which makes the rapid expansion of acute diseases, and the prevention and control is very important. Difficulty, causing serious economic losses

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