The main pests and diseases that are used to prevent bark scratching by this method include date tree spider mites, nail beetles, date turtle wax worms, jujube mealworms, red edge horn beetles, ring rot disease and anthrax. The time for scraping the bark is better when the spring temperature starts to rise but is still lower. When the bark is scraped, the main skin and the main branch are mainly scraped off by the rough skin and the curling skin. The scraping is too light to function. The scraping is too heavy to easily affect and destroy the xylem and the formation layer of the tree. Generally, the trunk is not grasped. Lubai is appropriate. Remember to bring all scraped skins out of the park or centrally destroy them.
Picking up pests and diseases, and destroying all the bad dates left on the ground are mostly pests and dates, which hide a large number of pests (eggs) and germs. Ground defoliation is also the disease leaf (date rust, etc.). If there is no pick in the fall, these pests, fruits, and pests should be promptly removed in the spring and brought out of the ground to be destroyed in order to prevent the re-infestation of pathogens or eggs.
Spraying Lithosulfurous agent before spraying the jujube can eliminate some of the overwintering pests and pathogens; spraying 30% of the dragon's lamp Fulian suspension 400 to 600 times, or 77% Daning wettable powder 300 to 400 times, or 60% Tongjia WP can be used for 300 to 400 times, and 20% of Fasting 1000 times can be added at the same time to eradicate the tree's overwintering bacteria source and overwintering pests.
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