The ripening and color-changing period of open-field grapes coincides with a period of concentrated rainfall, often resulting in grape cracking. Symptoms include: cracked skin, juice leakage, and wounds susceptible to fungal infection and rot under high humidity. This attracts pests such as beetles, bees, flies, and aphids, which suck the juice, affecting grape yield and quality, and directly reducing the commercial value of the grapes.

Cloprop, chemically known as 2-(3-Chlorophenoxy)-Propionic Acid, also known as Fruitone CPA and 3cpa, is an organic acid compound. In agriculture, it is primarily used to regulate plant growth, especially in fruit cultivation. Adjusting fruit acid can control fruit size

To make the pineapple fruit big and sweet, it is necessary to comprehensively consider multiple factors such as variety selection, growth environment, and cultivation management.
The following are key technologies and precautions:

Pineapples prefer acidic soil with a pH value between 5.5-6.5. The soil should be well-drained and rich in organic matter and trace elements such as phosphorus and potassium. The soil should be plowed to a depth of about 30 cm for better seed growth.