(4)Pest control

Ginger pests include ginger maggots, spodoptera exigua, and A. sphaerocephala, etc. Diseases include anthracnose and ginger fever. Pest control is based on "agricultural, physical and biological control, supplemented by chemical control" to achieve safe and green control.

1.Agricultural control

Dry the soil before sowing, disinfect the soil, strengthen field management during the growing season, and clean the garden in time after harvest. Use good and robust ginger.

2.Physical prevention

A 40 mesh nylon insect-proof net was covered around the arch shed, and yellow boards were hung inside the arch shed.

3.Biological control

Aphids are used to control aphids, and matrine is used to control downy mildew.

4.Chemical prevention

Chemicals for controlling pests and diseases should meet the requirements of national standards. Spray 25g of chlorothalonil on 667 ㎡ after ginger emerges, and spray every 10 days. The major ginger diseases include white spot disease, rot disease, spot disease, anthracnose, ginger blast and so on. At the beginning of the onset, foliar application of 70% methylthiocarbin wettable powder 1000 times liquid + 75% chlorothalonil wettable powder 1000 times liquid. Spray once every 7 ~ 10d for 2 ~ 3 times continuously. The rotten diseased plant should be removed in time, and the surrounding soil should be dug out, lime should be sprayed in the diseased cavity, and then buried with clean sterile soil.

Insect pests mainly include ginger maggots, ginger maggots, onion thrips, and spray treatment with 10% imidacloprid 2500-3000 times solution, and 25% immortal urea suspension 1000 times.

(5) Harvest in time

Ginger in the shed is generally harvested in late November. At this time, the minimum outside temperature reaches about 0 ° C, and the ginger in the shed has stopped growing. About 3d before harvesting, watering once, moist soil, easy to produce ginger. After ginger is released, cut the ground stem with a knife at the base of the stem 2 ~ 3cm, and then put the ginger with a small amount of soil into the ginger pit or cold storage.

Zhengzhou Delong Chemical CO., Ltd. is the production base of plant growth regulators in China, which established in 2009, specializing in offering plant protection products. If you have any question, contact us any time.