The problem of sunshine rosefruit rust has always existed in recent years, and the author has shared how fruit rust occurs and how to avoid it through the planting experience of these years.
The higher the ripeness, the easier it is to rust
First, from the perspective of tree potential, weak trees or seedlings are prone to rust, and the solution is to strengthen water and fertilizer management to enhance tree potential and reduce the occurrence of rust.
Second, the higher the sugar content of the fruit, the easier it is to have rust, which is determined by the characteristics of the sun rose itself, so generally we will use dark bags to bag, and when the bottom sugar has 17, it can be mined, and the longer the tree hangs, the easier it is to have rust.
Third, the bagging is too small, the friction rust produced, this phenomenon is generally not easy to find if you do not pay attention to it, the bagging is small, the fruit spike type is large, and the resulting rust is caused, so when buying a bag, it is better to buy a penny more than to buy the right one.
The bag is too small, and the friction appears to rust
Fourth, the problem of treatment agent, through years of experience, it is easy to rust with chloropyramide, and it is also easy to crack the fruit, because the skin is thin. Therefore, when choosing a drug, you can not use chloropyrurea alone, you can use chloropyramide and thiabenilone compound, in addition, thiabenilone will not lead to fragrance, some people can not because of the management method problem, there is a thiobenzoline treatment of the fruit is generally larger than chloropyrurea, so the maturity will be delayed, if the sugar is not enough, it is easy to pick the situation of light flavor.
Fifth, when the drug damage causes the peel to flower off, it is easy to split the fruit and appear rust, which requires actual combat experience, which can be beaten? Those drugs can not be compounded will be harmful, you must be clear. Sunshine rose on the powder, emulsion dosage form can not be used.
Sixth, the fruit is too small and easy to rust, so this is one of the reasons why the sun rose has been planted into large particles in recent years, generally more than 10 grams of fruit is not easy to have rust, on the contrary, the smaller the more prone to rust.