The lychee turns to the main pests and diseases during the harvesting period. The pests include locusts, cockroaches, cockroaches, and larvae. The diseases include downy mildew, anthracnose, and acid rot. It is necessary to keep up with management measures.
Technical operation At present, the main work of Litchi is to restore the tree potential and cultivate the autumn shoots.
A pair of early-maturing varieties of autumn shoots that have been released cannot be cut shortly so as not to affect the quality of the autumn shoots, but the dense branches can be properly removed. 2 It is necessary to spray medicine to protect new shoots in time. 3 To make full use of the recent rainy, especially in the orchard that lacks water in the mountains, grasp the fertilization and put one more autumn shoot. 4 There is no orchard with organic fertilizer. Prepare fertilizer and try to apply it in late July or early August. 5 In order to accelerate the ripening of the shoots, when the leaves begin to turn green, spray the polynucleotide once.
The second or third autumn shoots of the mid-maturing variety have been extracted or started to mature, but some orchards only take out the autumn shoots once. 1 The orchard with no results has taken out the second or third tip, soil fertilization or foliar spray of multi-nucleotides to promote shoot growth. 2 For orchards that only release 1 autumn shoot, you should hurry and shoot. 3 Regardless of the current number of autumn shoots, pay attention to spray tips and fight to get the last autumn shoots in late September and early October. 4 There is still no orchard orchard, and it will be applied at the latest in late August, and appropriate application of phosphorus and potassium fertilizer.
Late-maturing varieties are used for fertilization and pruning. 1 In order to restore the tree potential, the first fertilizer is applied after the fruit is harvested, and the nitrogen fertilizer is mainly used to promote the new shoots. 2 After 5 to 7 days of fertilization, the buds have begun to germinate and can be trimmed, especially for trees with more results. 3 When the pests and diseases of the orchard are serious, the soil can be applied once after the fruit picking, and the soil is turned white, the physical and chemical properties of the soil are improved, the soil fertility is increased, and the occurrence of pests and diseases is reduced.
Package control package one: the situation is like bamboo (13% high chlorine · triazophos) 1500 times + Heili green micro (2.5% Kung Fu) 1000 ~ 1500 times + Adi hit (0.5 A Wei salt) 1500 times + Luke (50% Dimethomorph) 1500 times. Package 2: Black light (25% propyl bromide) is 1500 times + Jinming (3.2% avid salt · high chlorine) 1500 times + Luke (50% enoylmorpholine) 1500 times.
Cautions 1. Highly toxic and high residual products are absolutely prohibited when the fruit is collected. 2. In case of rainy weather, the spraying interval should be shortened, and pay attention to the sunny spray. 3. For the stag beetle, you can hang the paper strips that wet the citronella oil at night, and kill the bats. 4. During this period, we mainly control the mites and downy mildew. According to the characteristics of Phytophthora capsici, the pathogenicity is very strong, the incubation period is short, and the reinfection is frequent. Combined with field disease prevention, comprehensive control measures such as low temperature and anti-corrosion after fruit picking are adopted. Haileer Pharmaceutical Group Co., Ltd. Marketing Department Wang Dongle
This article URL: Litchi color change to harvesting period prevention measures
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