Eggplant bagging can reduce the risk of insect pests such as cotton bollworm. The amount of pesticides used and the number of drugs used are less, and the product quality is greatly improved. Eggplant fruit bagging does not affect its growth, and can mature 3 to 5 days earlier, the previous production and total output can be increased, the fruit color uniformity, bright and bright, good merchandise, the market price is high. Eggplant bag handling technology is as follows:
Variety selection. Should choose medium and late mature fruit quality and high yield resistant varieties.
Bag selection. Paper bags can be used. The paper bags must have the functions of waterproof, anti-sun, anti-bacteria, and insect-proof. A 22 cm 20 cm, 0.008 mm biodegradable clear film bag is also available. According to experiments, the ultra-thin purple transparent polyethylene plastic bag with 42 cm, 24 cm, and 0.0015 mm works best.
Preparation before bagging. Before spraying the bag, a fungicide such as iprodione or oxacarb and insecticides such as insecticide and fleas are sprayed in order to sterilize and purify the fruit surface.
Bagging time. After eggplant flowering and fruit setting, when the young fruit diameter is 2 to 2.5 cm, the disease-free fruit bag is selected. Bags should be bagged from 8 am to 5 pm on a sunny day, but avoid high temperatures at noon to avoid burning the fruit.
Bagging method. Prior to bagging, the entire bundle of paper bags is placed in a damp place, making the paper bag moist and flexible. Put the bag directly on the young fruit, and use a string to tie the bag mouth and the fruit handle together. During the bagging process, the young fruit should be suspended in the bag as far as possible, and the binding should not be too tight. In order to maintain a certain degree of ventilation, it is recommended to use rubber bands to hold the mouth of the bag.
Bagging management. Bagging eggplant should strengthen the management of fertilizer and water, and spray the photosynthetic fertilizer once every 7-10 days. When the plant enters the final stage, 15 kg ammonium bicarbonate is applied every 7 days. Timely removal of old leaves and diseased leaves, timely drainage after rain, and prevention and control of tobacco budworms and cotton bollworms. Generally 20 to 23 days after flowering, eggplant can be harvested when the fruit surface color and the white ring are brightened and darkened from the width. After harvesting, the bag can be taken off and reused, or it can be picked and listed together with the bag, and the price is higher.
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