How to control the cherry blossom mulberry white shield scale?
How to control the cherry blossom mulberry white shield scale? Please introduce the method of cherry blossom mulberry white shield scale mainly distributed in the cherry blossom cultivation area, the occurrence is common, due to the current suitable climate, high humidity in the field, the occurrence is quite serious in some fields. The damage has caused the leaves to basically fall off, and the number of insect population is extremely high and dense, which can be seen as snow white in the near future. It is speculated that the first hatching stage of mulberry white shield scale should be around the end of September. The newly hatched nymph stage is the best time to carry out spray control. All farmers should strengthen the field inspection and control immediately if there is any occurrence, and keep the population base below the allowable economic level. Control methods: in the nymphal stage, spray 1000 Mel 1500 times liquid, kill 1500Mel 2000 times liquid or scale miling 150Mel 200 times liquid. If the insect population density is relatively high, it should be sprayed again every 7-10 days, and pesticides should be carried out alternately to prevent scale insects from producing drug resistance. In addition, cherry trees with high population density should be pruned properly and concentrated on burning treatment to prevent further spread of insect pests. Click for more cherry blossom planting techniques click to get more flower planting techniques
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How to prevent and cure cherry blossom root nodule disease?
How to prevent and cure cherry blossom root nodule disease? The gorgeous cherry blossoms are very popular, but they are susceptible to a fatal root nodule disease. The disease mainly occurs on the trunk and lateral branches of the root and aboveground parts of cherry blossoms. In the early stage of the disease, the rhizome was swollen with a spherical or hemispherical tumor, and the young tumor was white and qualitative.
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How to prevent roses from rotting?
How are roses grafted with buds? Please introduce the methods of bud grafting of roses for reference: 1. Selection of varieties: select traditional fine varieties, such as Gansu "bitter Water Rose", Shandong "Pingyin Rose", Beijing "Miaofengshan Rose", etc. (traditional roses bloom once in late spring and early summer), or choose near.
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