After may, there was a summer and a little festivities, and the agricultural proverb, “summer, put the fan racks”, entered the summer, and here we have an agricultural proverb, “enter the wheat to self-destruct”, meaning that wheat reaches the festivities, and naturally it stops growing and slowly turns yellow into the harvest season。
The walnut tree in may also reached the fruit expansion period, which was in two stages. The rapid birth of a long-term child will be around 15 june; the slow-birth long-term 15 june to 20 august. This is a critical period for the summer walnut tree management and pest control. Here's the technical requirements of the walnut tree management in may。
Naturally mature walnuts
I. High-wielding trees for decompression and ventilation
1. Demote
Following the marriage of the high-yielding tree, the pelican tree grows a large number of buds, which should be wiped out with its hand immediately after discovery, and the pruning of the plumes with its hand does not make it easy to grow again, while cutting off the plumes is easier to do so. This has the advantage of preventing the inefficient consumption of nutrients and moisture in the tree body, in order to enhance the nutritional adequacy of the ears, thereby contributing to increased gerontization and rapid growth of the ears. When they normally grow up to 20-30 cm, the aluminum no longer grows. In addition, if the earring dies, each earring should retain its strong and well-positioned bud, which will be remediated by august。
Ii. Release
In quung's home town, the farmers also call it exercise. When you are normally married, you will put a plastic bag in the ear, one to keep the temperature warm and wet and the other to prevent water loss. When the ear is alive, it grows to 2-3 centimetres, the plastic bag is unplugged, the new sprouts slowly embrace the natural environment, remember, it usually takes place when the sun sets, and the plastic bag is not torn off once, and it is released in batches. The best air break is in the dark。
The walnut tree grows in spring
Summer cut in mid-may
Mid-may was the beginning of summer season, when the fruit-farmer also called the leaf cutter, which was particularly important because of its high accuracy。
1. Decryption, short cut
At this point, the summer shears should remove branches that are too closed. • short cut-off of the growing growth branch and the growing branch, so that it can begin to grow in order to achieve the early expansion of the tree canopy and to cultivate the results branch。
2. Cardiac
Cardiocinology is the removal of new top growth points born in the year in order to boost the growth of new branches, curb new growth, accumulate reproductive nutrition and increase production. The first one should start in late may and take place three times throughout the year。
Walnut garden grass
Iii. Strengthening
High rainfall on 7 may had the effect of increasing yields for crops. And when it is clear, we shall plant our grass in the garden of the pecan, the porcelain and the weeding. The role of the pine soil is to reduce the high evaporation of surface moisture at summer temperatures by using a tiller or artificially severed soil cavities; to improve soil permeability and prevent the formation of land sheeting after heavy rains; and to improve soil fertility through organic material decomposition and microbiological activities. Weeding is a means of reducing soil nutrient loss and providing sufficient nutrition for tree bodies。
The number of years of cultivation in china may be determined by local rainfall, the number of waters poured and the growth of weeds, not exceeding 10 cm. At present, large orchards are being cultivated using small tillers, but they are being cultivated in such a way that they are deep and do not cause damage to the root system and prevent the emergence of the summer, resulting in an imbalance in the direction of the trees。
The fruit of the victim
Iv. Pest and leg moth control
1. Symptoms of harm
Wounding of walnuts occurs every year, normally in early may, and in late may, when insects occur. After being attacked by larvae, the larvae becomes black and brown, the fruit becomes dry, the early fall fruit, the larvae is filled with dung, and some contain more than a dozen larvae. Wogs are 80 per cent of the fruit, and some high-yielding trees are destroyed。
2. Methods of response
Prior prevention and treatment: thorough eradication of lost leaves, falling fruit and weeds during winter, removal of old trunk skins, removal of miscellaneous items that facilitate the hibernation of pests from the park and central burning. The eggs are frozen and the pest base is reduced, using cold winters and deep under trees。
Drug control: 2-3 kg per acre of puffed pine under the tree, and plastered to even. Spraying agents are selected to use a 20% speed-killer of 1,000 times ding or 20% deworming of 5,000 times the fluid, or 50% trichlorfon emulsion of 1,000 times the fluid, 48% losborne emulsion of 2,000 times the fluid, and 1. 8% avella cream of 500 times the spray. The first spray was administered in mid-may, and two or four times a year, depending on the occurrence of the pest。
Raise the leg moth
V. Pest and peach disaster management
1. Symptoms of harm
The country's main production area has been the scene of a plague. Walnuts, tomatoes, pomegranates, peaches, etc. The larvae enter from the point of contact with the leaves and branches of the fruit, leading to the decomposition of the fruit and to the spread of the fruit. In mid-may, it was first launched, with four generations occurring throughout the year。
2. Methods of response
Prior prevention and treatment: thorough clean-up of figs, dry branches and old barks before the orchard soil is frozen, and the removal of miscellaneous items around the orchard, which have been burned。
Physical control: placement of 5-i0 sugar and vinegar bottles or pest-killing lamps in orchards。
Drug control: 6,000 times the first dose of ivordeen-1 (avimactin) at the end of may, or 1,500 to 2,000 times the larvae at 25 per cent, 800 to 1,000 times the crystal trichlorfon at 90 per cent, and 1,500 to 2,000 times the sterilizer cream at 20 per cent, or 2. 5 per cent bromine cyprite cream 2000-3000 times the fluid, or 50% thiophos-methyl cream 1,000 times the fluid, etc. A total of 2-4 sprays were sprayed throughout the year, depending on the pest situation。
It's a mess
In conclusion, the above five are current and timely practices for the management of walnut gardens, especially the 7-9-day rainfall of walnut trees in arid areas, which is especially critical when the weather is clear and when grass is first cultivated. The second is leaf cutting and pest control. Good governance in may creates strong guarantees for increased revenue。
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