Red date alternaria brassicae occurrence rule

Abstract

The invention relates to a red date alternaria brassicae occurrence rule. A pesticide which can effectively control the red date alternaria brassicae is screened out, and the mix proportion of the pesticide is determined. Eleven kinds of bactericides which are common in Alaer and Aksu agricultural commodities markets are screened out. The screening result indicates that pyraclostrobin tops the virulence for spores of alternaria brassicae, followed by fluorosilicone, difenoconazole and carbendazim. When carbendazim and pyraclostrobin are combined in the ratio of 1:6, the mixture reaches the highest virulence and has an obvious synergistic effect.

Description

technical field [0001] The present invention relates to the regularity of the disease, more specifically, to the regularity of the pathogenesis of the black spot fungus of jujube. Background technique [0002] Black spot disease of jujube mainly infects Maoye jujube (alias Dianzi jujube, Indian jujube, Burmese jujube, Taiwan green jujube), which is one of the main varieties in the genus of jujube. Found in Africa, India and Australia. In my country, it is mainly distributed in Yunnan, Hainan Island, Guangdong, Taiwan and other places. The disease was discovered in Harleyna, India in 1975. In my country, the disease was discovered in the jujube garden of the Institute of Tropical and Subtropical Economic Crops, Yunnan Academy of Family Industry in 1985. By the investigation in 1987, the disease had spread throughout the jujube orchard, causing fruit damage. Smaller, less tasteful, affecting quality and yield. In addition to the disease against Maoye jujube, the local wild j...

AI Technical Summary

Problems solved by technology

[0024] (4) Poisonous damage of harmful substances (such as chemical damage, fertilizer damage)

[0025] 2. Causes of infectious diseases

At the same time, the vast majority of pathogenic organisms are microorganisms, which must be identified with the help of a microscope.