Pear fruit is a type of fruit that belongs to the single fruit category and is commonly found in plants of the Rosaceae family. Many plants producing pear fruits are consumed by humans as fruits, including apples, pears, and hawthorns. So, what are the methods to prevent diseases and pests of pear fruit? Let's take a look together.
1. Black Spot Disease: The peak periods of occurrence for this disease are during the spring new shoot growth period and the rainy season in summer. For controlling black spot disease, spraying with fungicides can be chosen, such as:
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12.5% Cyprodinil EC at a concentration of 1560-3125 times
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40% Flusilazole EC at a concentration of 6000-10000 times
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25% Penconazole SC at a concentration of 8000-10000 times
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5% Tebuconazole SC at a concentration of 1000-1250 times
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0.36% Matrine EC at a concentration of 600-800 times
Alternatively, spraying with 12.5% Tebuconazole WP at a concentration of 3000-4000 times can be initiated from the budding period to the fruit harvesting, with a maximum of 3 applications per year, with a safety interval of 21 days. Or, spraying with 6% Chlorothalonil WP at a concentration of 1000-1500 times can be done, with a maximum of 3 applications per year, with a safety interval of 14 days. Spraying with 25% Flusilazole EC at a concentration of 5000-6000 times can also be considered, with a maximum of 2 applications per year, with a safety interval of 21 days. Alternatively, 5% Imidacloprid WP at a concentration of 1000-1200 times can be used, with a maximum of 3 applications per year, with a safety interval of 28 days.
2. Rot Disease: Spray with 80% Mancozeb WP at a concentration of 500-700 times from budding to flowering.
3. Ring Spot Disease: During the growth period, depending on rainfall, spray once with a fungicide after the flowers fall. During the period of extensive pathogen dissemination and infection, spray a fungicide every 15 days depending on rainfall. For controlling ring spot disease, you can use 61% Aluminum Manganese Zinc WP at a concentration of 400-600 times. Alternatively, from budding to fruit harvesting, spraying with 40% Carbendazim WP at a concentration of 1000-2000 times can be effective.
4. Aphids: From budding to flowering, spray with 40% Dimethoate EC at a concentration of 1000-2000 times, with a maximum of 4 applications per year, with a safety interval of 20 days.
5. Hawthorn Leaf Mites: From after flower fall to before bagging of young fruits, spray with 40% Dimethoate EC at a concentration of 1000-2000 times, with a maximum of 4 applications per year, with a safety interval of 7 days.
6. Pear Psylla: The second and third generations of adult egg-laying and larval hatching periods are critical for control. The following formulations can be used:
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20% Cyantraniliprole EC at a concentration of 10000-20000 times
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25 g/L Chlorfenapyr EC at a concentration of 2500-5000 times
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25 g/L Flubendiamide EC at a concentration of 3000-5000 times
If occurring during the entire fruit swelling period, spraying with 20% Acetamiprid EC at a concentration of 2000-3000 times can be effective, with a maximum of 3 applications per year, with a safety interval of 30 days, or spraying with Chlorfenapyr EC at a concentration of 2 times, with a maximum of 2 applications per year, with a safety interval of 21 days, or spraying with 40% Dimethoate EC at a concentration of 1000-2000 times, with a maximum of 4 applications per year, with a safety interval of 7 days.
These are the methods to prevent diseases and pests of pear fruit. During the cultivation of pear fruit, it is essential to master these preventive methods. In case of occurrence of diseases and pests, timely use of pesticides is necessary.
