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What are the control methods for jujube fruit shrinkage disease?

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The occurrence of jujube fruit shrinkage disease is positively correlated with the density of piercing-sucking insects; when atmospheric humidity is high, especially with intermittent rainfall or successive cloudy days, the disease often becomes epidemic. Control methods: (1) If the disease index was relatively high the previous year, first clean up fallen leaves and fallen fruit in the jujube orchard and dispose of them in a centralized manner to cut off the source of transmission. (2) Strengthen fertilizer and water management in the jujube orchard to improve tree resistance; for older trees, scrape off and burn old bark before jujube bud break, and spray the whole tree once with lime sulfur mixture. (3) Chemical control: use Fungus No. 1

The occurrence of jujube fruit shrinkage disease is positively correlated with the density of piercing-sucking insects; when atmospheric humidity is high, especially with intermittent rainfall or successive cloudy days, the disease often becomes epidemic.

Control methods:

(1) If the disease index was relatively high the previous year, first clean up fallen leaves and fallen fruit in the jujube orchard and dispose of them in a centralized manner to cut off the source of transmission.

(2) Strengthen fertilizer and water management in the jujube orchard to improve tree resistance; for older trees, scrape off and burn old bark before jujube bud break, and spray the whole tree once with lime sulfur mixture.

(3) Chemical control: use Fungus No. 1 at 800 times dilution or streptomycin sulfate at 6500 times dilution for the first spray at the end of June to kill the pathogen; from the end of July to early August, spray once every 10 days.

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