What to Do About Kiwifruit Fruit Drop? Detailed Prevention and Control Measures
Kiwifruit, also called kiwi, is a fruit with a flavor different from other fruits; it is juicy, fresh and sweet, with a unique taste. It is rich in vitamin C, can stabilize mood, and helps with digestion. But kiwifruit often drops fruit during growth. How can fruit drop be effectively prevented and controlled? Come take a look with the editor.
1. Scientific pollination
Pollination work should be completed reasonably, and the previous incorrect pollination methods should be changed. Fruit growers should try not to store pollen for more than one year, because self-collected pollen has relatively high purity, and pollen cannot be sealed or kept in a dry environment, nor can the temperature be controlled below -18 degrees. So it is best not to store it; pollen should also not be exposed to the sun above 28 degrees, and tools such as a blender should not be used to collect pollen, because this will further reduce pollen purity.
2. Water management
The water in the field must be kept in a suitable environment; the water content in the field should be above 65%; pay attention to the field humidity, and the humidity in the orchard should be above 55. However, it should be noted that pollen cannot encounter water. If it encounters water, the stigma of the pollen will rupture, making pollination impossible and defeating the purpose.
3. Responding to adverse weather
When low temperatures arrive, agents such as amino acids should be sprayed to improve the resistance of the fruit trees. If it is during the flowering period, irrigation can delay the flowering time of kiwifruit, allowing the flowers to avoid the low-temperature climate and reducing losses. If the frost season is approaching, artificial smoke prevention should be adopted to protect the trees from freezing; if it is after flowering, decisions should be made according to the pollination situation. If high-temperature weather occurs, more irrigation should be given, but too much water should not be irrigated all at once, to prevent flower drop caused by too great a temperature difference.
4. Strengthen management
The soil fertility should be improved, using about 3000 kg of farmyard manure as base fertilizer, applied evenly. Remove weeds in the orchard and strengthen the orchard's facilities, such as integrated automatic fertilizing and watering equipment. Also, excessively long branches should be properly pruned to regulate the tree's nutrition and development. The planting density should not be too dense, and the yield per mu should be about 1000-2000 kg.
5. Disease prevention and control
When selecting seeds, choose disease-resistant seeds, or disinfect the seeds before sowing to improve the disease resistance of the whole plant. When disease characteristics are found, spray medicine promptly, clean up diseased residues, and disinfect the orchard. Around Qingming Festival is the onset period of sclerotinia disease, and agents such as vinclozolin can be sprayed for prevention. However, do not do this when the temperature is relatively high, to avoid phytotoxicity.
The above are the prevention and control measures for kiwifruit fruit drop. Kiwifruit is a fruit very sensitive to the external environment, so you must pay attention during the flowering and fruiting stages. If you want to know what causes kiwifruit fruit drop, you can follow Qinnong Web to view past articles!