Prevention and treatment of broccoli cream strategy

Broccoli mold frost is a fungal disease. It has obvious performance in the course of flower bud development. It usually begins with the old leaves and then spreads to young leaves. The beginning of the disease is characterized by a lack of green, yellow spots on the leaves, dry leaves, and moisture. When the leaves appear back mold. The main factor in the early stage of onset is that the humidity in the field is too large and the accumulated water is too much, so that the resistance of the plant is reduced.

Prevention:

1. The varieties with strong disease resistance should be selected, rotate reasonably, avoid continuous cropping, the soil should be sun-dried white before sowing, and appropriate amount of lime can be applied for improvement, and disinfectant can be disinfected by applying 800 times liquid of disinfectant and new high fat film. Treatment, and pouring enough water before transplanting, adequate base fertilizer.

2. Strengthen field management. In the growth stage of broccoli, timely cultivating and weeding should be carried out. Roots should be cultivated, roots should be topdressed properly, watered at a proper time, watered in a timely manner, drained, and the humidity in the field should be reduced. Spraying strong stalks at the budding stage in time can make the plants The stems are thick and the bulbs are hypertrophic. At the same time, they can increase the anti-disaster ability, reduce the amount of pesticides and fertilizers, reduce the residual toxicity, and improve the natural taste of broccoli.

3, chemical control, if found diseased plants should be timely allocated and brought out of the field burned, and should be sprayed according to plant protection requirements of targeted agents (such as 70% mancozeb WP, metalaxyl) for prevention and treatment, and With the spraying of new high-fat membrane 800 times liquid to enhance efficacy, improve the utilization of effective pharmaceutical ingredients, consolidate the control effect.