The main diseases and pests of apple orchards are mainly rot, dry rot, ring rot, mycotic, spotted deciduous, brown spot, calcium deficiency bitter pit, zinc deficiency lobular, black spot, and apple wilt , Viral face disease, Mosaic disease; Apple astragalus, Rhizobium, apple red spider, red spider acacia, two-spotted spider mite, cornelian whitefly, green aphid, carnivora, leaf roller moth, gold leaf moth, Silver leaf leaf leaf moth, yellow thorn moth, American white moth, boat-shaped caterpillar, apple hair golden tortoiseshell turtle, crickets, long-horned cattle and so on. In particular, in recent years, with the change of climate, apple virus disease, wilt disease, and apple red spider have been on the rise, and pests and diseases have changed. According to their law of occurrence, hazard characteristics, seize the key period for prevention and treatment.
1. saw the diseased branches. Cut off pests, dry rot, small diseased branches and diseased leaf roller moth, apple bristles, cockroaches, beetles and other pest branches.
2. Curing the overwintering sites of apple rot rot disease, dry rot disease rot, rosy schistosomiasis, old primordial skin and apple cotton worm, Kang's whitefly, gypsy moth, apple leaf roller moth. The time is appropriate in the middle or late March. Scraping too early, especially if it is too heavy, if it encounters long-term low temperature or windy weather, it can easily cause trunk cracks, water loss, and even freezing damage to weaken the tree.
3. Immediately on the day after apple branches are shaved or large excision saws, apply Green Cloud 3% thiophanate-methyl healing agent or 40% fluorosiliconazole 300-fold solution on the same day. If apple scour or Conradus serious occurs, apply a 1:19 mixture of 40% phosphoric acid and oil emulsion. Remove dead branches, fallen leaves, weeds, disease skin, dead fruit, etc. in the orchard.
4. During the germination period of apple buds, when the average daily temperature is above 10°C, spray 50% Chlorobromoisocyanuric acid 300-500 times to prevent rot, ring rot, and face virus.
5.3 At the end of April and early April, apple tree buds inflated, spraying 1%-2% urea + 3%-5% zinc sulfate or 0.3%-0.5% Youtai functional micronutrient mixture sprayed once on the canopy to control lobular disease.
In the middle and middle 6.4 months of apple red flower period (inflorescence separation period), 1.8% of cyromazine 300 times solution + 40% chlorpyrifos 1000 times solution + Avicin 1500 times solution to kill the tree overwintering bacteria and viruses , Prevention and control pests such as apple leaf roller moths, leaf roller leafhoppers, ticks and other pests. The principle of medication in the spring garden is "steadiness, accuracy, and ambiguity." Try to "wash, penetrate, and flow."
Seafood Mix,Frozen Cooked Mussel,Frozen Pud Frozen Seafood,Frozen Shrimp And Seafood Mix
Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com