What should I do if the roses are covered with many bugs?

Aphids occur all year round and are very harmful when they are dry. In the early stage of occurrence, especially in the vigorous development period of new buds, it needs to be eliminated as soon as possible, and spraying a variety of pesticides has a good control effect. The key spraying parts are growing points and leaf backs. Commonly used drugs are aphids and chlorpyrifos. Dichlorvos can also be fumigated with better effect, but it can't be used after flowering.

2. Starscream

Red spider absorbs chlorophyll from leaves, which reduces the efficiency of photosynthesis of roses, spreads rapidly, and will soon damage leaves and stop plants from developing. It mostly happens in summer, and it is most likely to happen when it is dry at high temperature. At the initial stage of occurrence, 600 times of acaricide or 500 times of sharp acaricide1000 ~/kloc-0 can be sprayed, and the effect is good.

Extended data

Roses contain many trace elements and high vitamin C. Roses can be used to make various refreshments, such as rose sugar, rose cake, rose tea, rose wine, rose pickles, rose cream and so on. In some parts of Europe, you can eat roses directly, the roots of roses can be cooked and eaten, and the roots of roses can be used to make wine.

The ripe fresh fruit of rose contains a lot of vitamins A, B and C, as well as more than ten kinds of amino acids, soluble sugars and alkaloids. Among them, the content of vitamin C is the richest, reaching more than 2000mg per 100g, and it is known as the "king of vitamin C".

It also contains protein, fat, carbohydrates, calcium, phosphorus, potassium, iron, magnesium and so on. The protein content is 8.5%, the fat content is 4.7%, the soluble sugar content is 65,438 0.2%, and the carbohydrate content is 68%.

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