Spice Novelties Co.,Limited , https://www.wholesale-adult-toys.cn
Overwintering cucumber disease and early prevention
Overwintering and picking cucumbers are prone to viral diseases, bacterial diseases, downy mildew, and root rot, and disease prevention measures should be taken as soon as possible. Soil disinfection before planting to prevent soil-borne diseases. The cucumber needs a large amount of fertilizer. Before the planting, it should be combined with 10 to 15 square meters of chicken manure per acre for high temperature stuffy shed treatment to kill the bacteria in the soil, so that the chicken manure fully decomposed. Two days before planting, the greenhouse should be ventilated to prevent harmful gases in the shed from harming the cucumber seedlings. During the colonization, bio-fertilizers were applied on the acupoints to inhibit the growth of cucumber roots. After the planting, the pesticide was used to control the disease at proper time. In general, cucumber root rot and blight usually occur 4 to 5 days after planting. The cucumber should be used for irrigation in time for 3-4 days after planting to prevent root diseases. When cucumber stalk grows to about 1 meter, it is prone to bacterial marginal blight (decaying the top of the head), and can be prevented by spraying copper citrate fertilizer plus agricultural streptomycin. It should be noted that many vegetable farmers mistakenly believe that the rotten head is scab, and that a large number of azole drugs such as fluorosiliconazole are sprayed, resulting in phytotoxicity to cucumbers. Downy mildew is a common disease after cucumber colonization. It can be prevented by metalaxyl or propamocarb hydrochloride spraying after 10 to 15 days of colonization. After onset, it can be controlled by urea manganese zinc and agricultural streptomycin. Virus disease often occurs after colonization of cucumbers. In addition to regulating the environment of the greenhouse and controlling pests and transmission of pests, the use of copper acetate or ningnanmycin spray to control the disease is timely.