Thidiazuron is primarily used to promote plant cell division and delay leaf senescence. Its application in pre-harvest leaf drop in seedlings requires adjustment based on the specific crop.
Applicable Crops: Thidiazuron is suitable for various crops including cotton, grapes, citrus, and tomatoes. In cotton cultivation, it promotes natural separation of petioles from stems, accelerates leaf drop, and improves mechanical harvesting efficiency.
Thidiazuron Application Methods:
Cotton: Ethylene content increases significantly 4-12 hours after spraying, leaves gradually turn red and fall off, and the effect lasts for about 10 days, increasing the proportion of pre-frost cotton by approximately 15%-20%.
Grapes: Use after physiological fruit drop to prevent fruit drop and promote fruit enlargement.
Apple/Peach Trees: Apply during the central flowering or full bloom stage to increase fruit set and accelerate fruit ripening.
Precautions: Strictly adhere to the recommended concentration (usually 2-4 ppm) to avoid phytotoxicity caused by high concentrations. It is recommended to use in conjunction with adjuvants to improve adhesion and spreading.
