Study on the occurrence law and green control of grape gray mold from the perspective of ecological balance

Abstract

With the increase of grape planting years, the base number of pathogenic seedlings and insect population is gradually rising. In addition, the introduction, breeding system and control of seedlings are not standardized and other human factors, the occurrence of Botrytis cinerea(B.cinerea) on grape is becoming more and more serious, resulting in a prominent problem of yield decline. In this paper, the occurrence of B.cinerea was monitored and its control effect was tested from the perspective of ecological balance. Finally, the biological characteristics and control of B.cinerea were studied. The spore catcher was used to catch the pathogen spores of B. cinerea, and the amount of sporangium scattering reached its peak from August to September Spore scattering is affected by meteorological factors, and the temperature has reached a very significant level, and the low temperature and high humidity conditions are conducive to the disease; The results showed that the resistance frequency of 304 B.cinereastrains to carbendazim, boscalid, pyrimethanil was higher than 50%; the volatile compounds produced by yeast (Trichosproom sp.) YE-3-2 significantly inhibited the growth of B.cinerea (inhibition rate was 62.93%, according to the occurrence regularity of B.cinerea, the accurate and effective agricultural measures had a good control effect on B.cinerea, which could improve the quality of grape fruit and provide some help for the prevention of grape gray mold.

Fungicides alter the distribution and diversity of bacterial and fungal communities in ginseng fields

“…Zhu et al [ 31 ] noticed a rapidly increasing trend of Penicillium, Nitrolancea, and Pseudomonas , while decreasing tendency of Fusarium and Mortierella, Nitrospira and Aquicella after applying dazomet. Shen et al [ 32 ] identified the dominant genus, Bacteroides, Flavobacterium, and Cytophaga, and the effect of carbendazim on bacterial community in arable land was mainly contributed by g- Proteobacterium . Fang et al [ 33 ] reported that carbendazim alters bacterial community mostly owing to γ- Proteobacteria , and carbendazim may suppress Pseudomonas, Mycobacterium, Bacillus, Arthrobacter, Burkholderia , and Streptococcus .…”

Identification of Laccase Genes in Grapevine and Their Roles in Response to Botrytis cinerea

“…Grape is an important fruit crop worldwide with huge economic value. With the increase in grape planting years, the base number of pathogenic seedlings and insect population is gradually increasing [1]. The occurrence of Botrytis cinerea on grape, the ubiquitous necrotrophic fungal pathogen, is becoming more and more serious, resulting in a prominent problem of yield and quality decline [1,2].…”

Insights into the Biocontrol Function of a Burkholderia gladioli Strain against Botrytis cinerea

“…Gray mold disease, caused by Botrytis cinerea , is one of the most serious fungal diseases affecting flowers, fruits, leaves, and stems; it is difficult to control because the pathogen can survive in soil and plant residue for a long time ( 3 , 4 ). B. cinerea is one of the most devastating postharvest diseases that cause gray mold during transportation and storage of tomato ( Solanum lycopersicum ), grapevine ( Vitis vinifera L.), and over 200 other plant species and is responsible for significant direct losses that total 20% to 30% and even reach 50% in severe cases (Chinese research data) ( 5 , 6 ). It is necessary to efficiently control the occurrence and spread of gray mold disease.…”