Pomegranate cracking affects the selling quality how to prevent and cure pomegranate fruit cracking disease

In pomegranate planting, the beauty and economic value of pomegranate are often lost due to fruit cracking. This paper introduces several effective ways to prevent pomegranate fruit cracking for reference of fruit growers.

pomegranate fruit cracking

1. Reasonable watering, temperature control and moisturizing. Water heat capacity is high, can adjust pomegranate temperature, prevent sunburn, quenching and so on. Therefore, in pomegranate growth and development period, should grasp the opportunity, reasonable watering, keep the soil moist, temperature appropriate. Especially pomegranate near ripe before, such as moderate soil moisture, do not need watering. If it is very dry, also apply small water fine irrigation, avoid flood irrigation, so as not to make the soil moisture too large. After the rainy season, the whole garden is covered with grass, the thickness is 15~20 cm, and it can also control temperature and moisture.

Second, reasonable pruning, enhance the permeability of pomegranate tree crown, prevent branches and fruits from being worn. During winter shearing, some larger cross branches and overlapping branches should be thinned or retracted, the subordinate relationship of backbone branches at all levels should be adjusted, and the peripheral dense fruit branches and thin and weak drooping branches should be thinned and retracted. Summer shears are mainly bud wiping, core picking and twisting. The useless and crowded branches and buds should be eliminated as soon as possible, and the useless long branches should be thinned. The branches with space can be transformed into fruit branches by picking and twisting.

Third, timely pest control, mainly peach borer, peach fruit borer. One is to concentrate on the key stages of overwintering larvae, adult emergence, eggs and larvae hatching. To control overwintering larvae, phoxim granules are applied before larvae emerge from hibernation. During the adult stage, spray 90% trichlorfon 1000 times solution or 50% phoxim 1000 times solution, or pyrethroids 2000~3000 times solution for control. During the incubation period of eggs and larvae, spraying 50% fenitrothion or 90% trichlorfon 1000 times solution to control, the effect is good. Pick up and remove the injured pomegranate fruit in time to reduce the source of insects. The second is to block the cylinder with mud. Before the larvae eat fruit, mix the mud with 50% phoxim or 90% trichlorfon 0.5 kg plus 100 times soil and 10 kg water, and form small mud balls to block the cylinder. The third is to remove the right fruit, pinch off the leaves of the pomegranate base, but also to prevent larvae from eating fruit. Fourth, pomegranate bagging. Bagging before laying eggs can not only prevent larvae from eating fruit, but also cure many diseases and improve pomegranate quality.