May. 08, 2021
1.Place：Shijiazhuang Xinji
2.Time：March 10tn,2021
3. Test crop: fennel
4.Product name: HD-819
5.Test disease: DOWNY MILDEW BOTRYTIS CINEREA INHIBITOR
6.Istruction：
1、 (1) On March 10, 2021, to prevent gray mold from occurring in 600 square meters of fennel greenhouse, dissolve 60 ml of HD-819 plant protection solution in 30 liters of water, stir well, and then put them in 2 times separately In a 15-liter sprayer, spray half the area of the fennel greenhouse. The other half in the same greenhouse did not spray the medicine to prevent gray mold
2、 (2) 26 days after spraying on April 6, 2021, observe that the fennel sprayed with the plant protection solution in the 600 square meter fennel greenhouse did not occur gray mold. And in the other half of the fennel field where the plant protection liquid was not sprayed, gray mold disease occurred
7. Comparative observation of medication effects:
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