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What are the control methods for navel orange fruit drop caused by insect damage?
What methods can control navel orange fruit drop caused by insect damage? Please provide guidance. Navel orange fruit drop caused by insect damage is mainly due to damage by fruit-boring moths. The severe damage occurs in the later stage, because earlier control combined with other pests and diseases achieved simultaneous control, and production habits have formed such that after September, pesticides are rarely used, and some growers even stop spraying altogether. 9...
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What are the pest and disease control methods for Fuchuan navel oranges?
Which pests and diseases need to be controlled when growing Fuchuan navel oranges? Please provide an introduction and control methods. The following is an introduction to common navel orange pests and diseases and their control methods for reference: Rust mite: from late May to early June during the young fruit stage, start spraying when 3-5 mites are found on the fruit surface, spray once every 10-15 days, for 2-3 consecutive sprays, then spray 1-2 more times from July to September...
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Causes of Navel Orange Fruit Cracking and Control Methods
Why do navel oranges crack? How should they be prevented and controlled? Please give guidance. Generally, navel orange fruit cracking mostly occurs during the rapid fruit expansion stage and the fruit ripening stage. This is caused by the combined effects of fluctuations in soil moisture, temperature and relative air humidity, which make the flesh grow faster than the peel. Preventing and controlling navel orange fruit cracking...
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What are the control methods for peony brown spot disease?
Peony brown spot disease is a common disease in the late growth stage of peonies. Symptoms: pale white spots of varying sizes appear on the leaf surface, generally round spots 3-7 mm in diameter. A leaf may have as few as 1-2 spots, or as many as 30. The center of the spot gradually turns brown, with very tiny black...
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Prevention and Control Methods and Technical Key Points for Flower and Fruit Drop in Zucchini
How to prevent and control flower and fruit drop in zucchini? Please advise on methods. Flower and fruit drop in zucchini can be prevented and controlled by referring to the following methods: Strictly control temperature. During the flowering and fruiting period of zucchini, keep the temperature inside the greenhouse at around 26°C during the day and no lower than 15°C at night. Remove and cover the straw curtains in a timely manner. Remove and cover the straw curtains in a timely manner to extend...
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How to Prevent and Control Zucchini Flower Rot? A Full Breakdown of Practical Methods
How to prevent and control zucchini flower rot? What methods can effectively prevent and control it? Zucchini flower rot can be prevented and controlled using the following methods: Environmental regulation: First, reduce humidity. Zucchini flower rot occurs easily in low-temperature, humid greenhouse environments, so environmental regulation should focus mainly on heat preservation and humidity reduction. Since the fruiting period of zucchini...
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A Detailed Guide to Common Pests and Diseases of Rose and Their Control Methods
The rose has a beautiful appearance, comes in a thousand forms, is richly fragrant, and blooms in all four seasons. In particular, it has a great many varieties and is easy to propagate and cultivate. It is praised by people as the "Queen of Flowers" and is one of the ten most famous flowers of our country. However, rose pests and diseases often cause poor growth and even death, seriously affecting its ornamental value.
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How to control scale insects on plum trees? Practical methods here
How to control scale insects on plum trees? Please introduce methods. Plum tree scale insect control methods: 1. Do a good job of winter pruning and orchard cleaning to reduce the population density the following year, and spray 5-degree lime sulfur mixture before bud break. 2. Trunk smearing method for control: ① Apply a 5-fold dilution of commercially available laundry detergent evenly to the infested trunk. ② Mix 5 parts commercially available kerosene, 1 part laundry detergent, and 6 parts water, and apply evenly to the infested trunk...
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How to Treat Potato Early Blight? A Detailed Guide to Prevention and Control Methods
How to treat potato early blight? Please explain the methods. Early blight control is mainly based on chemical fungicides, with protective fungicides applied as sprays. Before the disease appears, 75% mancozeb water-dispersible granules can be used at 180-200 grams per mu, sprayed once every 7-10 days for 3-4 consecutive applications. Antaisheng (propineb) and similar fungicides can also be used...
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How to prevent fruit cracking in Feizixiao lychee? A detailed guide to practical control methods
How to prevent fruit cracking in Feizixiao lychee? Which methods work well? To prevent fruit cracking in Feizixiao lychee, you can refer to the following methods for control: 1. Root cutting and girdling: In the later stage of fruit development, using root cutting and girdling of the main branches to weaken root activity is very effective at reducing fruit cracking. But the measures must be timely and appropriate; if excessive...
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