Matters needing attention in driving down fruit with ethylene

Before the application of ⑴, according to the local conditions, do spraying time, concentration comparison test to determine the best concentration and use time; ⑵ fresh varieties are not suitable to use ethephon; ⑶ ethephon can accelerate the aging of jujube leaves. A higher concentration of ethyl dilute will cause a large number of fallen leaves, and the concentration of fallen leaves is close to the practical concentration. Therefore, for the varieties sensitive to ethephon and poor drug resistance, the spraying concentration must be accurate; ⑷ ethephon is not very stable in water and will slowly hydrolyze and fail, so the spraying solution needs to be used now.