Fruit bagging is an essential practice in producing pesticide-free fruits, but it's crucial to carefully choose the types of chemicals used. Especially during the early fruit development stage, the fruit surface is very tender and sensitive to chemical reactions. The quality of the selected products directly affects the yield, appearance, and market value of the fruit.
In recent years, the most effective biocides for protection in orchards include Jin Nai Hai, among others. For both protective and curative fungicides, Nanoxin, Pigeon Ha, and Jinlix are commonly used. Insecticides and acaricides such as Atoli, Alfat, Anmin, Insect Game, Anmite, and Scorpion are widely applied. Foliar fertilizers like Fifan, Sdeco, and Green are also recommended for foliar application.
During the young fruit stage, micro-nutrient fertilizers like Stedokop can be used to address iron deficiency-related yellowing. Spraying EDDHA-based products helps restore green color and ensures the tree receives essential elements such as boron, zinc, iron, molybdenum, and copper. However, it's important to avoid using ferrous sulfate, copper sulfate, or zinc sulfate on young fruits, as well as potassium dihydrogen phosphate or ammonium dihydrogen phosphate (which may contain irritating ammonium bicarbonate), as they can cause invisible damage to the fruit surface.
Commonly used concentrations of pesticides, fungicides, foliar fertilizers, and water conditioners in production are as follows:
For fungicides: 50% Pigeon Suspension at 1200–1500 times dilution; 70% Nanoxin Wettable Powder at 1200–1500 times; 25% Jinlix Emulsifier at 5000–7500 times; applying Jinlish at 200–300 times for apple tree rot control shows good results.
For insecticides and acaricides: 20% Atoli EC at 2000–3000 times; 57% Mite Solution EC at 2000–3000 times; 3% Alfat at 1500 times; 40% Anmin EC at 1000–1500 times; 2.5% Insect Game Dead EC at 2000 times; 20% Ankang Special EC at 1000 times.
Calcium is vital for apples, and using six trace element fertilizers like de Kopp at 5000–6000 times or Top Green at 6000–12000 times can enhance calcium absorption.
When using multifunctional agricultural water conditioners, diluting them at 4000 times with soft water can improve pesticide efficiency, making application easier and safer while increasing overall yield.
Recommended pre-bagging treatment plans include combinations to prevent powdery mildew, leaf spots, anthracnose, sooty blotch, and pests like aphids and borers.
For reference in practical applications:
1. Soft water + 70% Nanoxin WP at 1200 times + 20% Atoli EC at 2000 times + de Kopp at 6000 times.
2. Soft water + 50% Pigeon Suspension at 1200 times + 40% Anmin EC at 1000 times + Sde Cop at 6000 times.
3. Soft water + Jinlix at 7500 times + 20% Atoli EC at 2000 times + Sde Cop at 6000 times.
Before bagging, mix the solution with soft water for quick absorption. After 30 minutes, proceed with bagging. Applying Jinlix at 7500 times before bagging ensures a 20–30 day protection period, allowing worry-free bagging.
Source: Lianjiang County Agriculture Bureau
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