Method for preventing and controlling brown spot of malus halliana
A technology for crabapple brown spots and diseases, which is applied in the field of plant disease and insect pest control, can solve the problems of dead crabapple, inability to kill pathogens, and poor disease resistance of crabapple, and achieve simple methods, avoid deadness or slow growth, and improve The effect of growth rate
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Embodiment 1
[0026] A method for preventing and treating the brown spot disease of Begonia chinensis comprises the following steps:
[0027] step one:
[0028] Spring: April is the first month when the flowers of the crabapple are in full bloom. Due to the end of insect dormancy and the growth of pathogens, the crabapple will be eroded. Prevent it once in the first ten days of April, and use protective fungicides, because The increase of rain in spring will wash away the pesticides sprayed on the crabapple and reduce the efficacy of protective fungicides. Therefore, after that, prevent once every 20-30 days, and then use therapeutic fungicides later.
[0029] According to the life cycle of aphids, before April 15, combined with the control of aphid pupae 80% mancozeb wettable powder 600 times liquid control, mancozeb wettable powder can kill aphids, so that the aphid pupae will not affect the hanging silk The crabapple is affected. Since April is the flowering period of the crabapple, the...
Embodiment 2
[0037] A method for preventing and treating the brown spot disease of Begonia chinensis comprises the following steps:
[0038] step one:
[0039] Spring: April is the first month when the flowers of the crabapple are in full bloom. Due to the end of insect dormancy and the growth of pathogens, the crabapple will be eroded. Prevent it once in the first ten days of April, and use protective fungicides, because The increase of rain in spring will wash away the pesticides sprayed on the crabapple and reduce the efficacy of protective fungicides. Therefore, after that, prevent once every 20-30 days, and then use therapeutic fungicides later.
[0040] According to the life cycle of aphids, before April 15, combined with the control of aphid pupae 80% mancozeb wettable powder 600 times liquid control, mancozeb wettable powder can kill aphids, so that the aphid pupae will not affect the hanging silk The crabapple is affected. Since April is the flowering period of the crabapple, the...
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