2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
In addition to bacteria, viruses and parasitic microscopic fungi, the physiological characteristics of some plants can threaten the life of hyacinth. They love to feast on hyacinth and annoying pests of our flower beds
Loss of inflorescences
If the bulbs are planted too early; warm winters or high temperatures when landing; excess nitrogen or moisture in the soil; planting material poorly warmed up during drying - all these reasons can provoke inflorescence loss. It occurs due to the intensive growth of leaves, which manage to transfer the peduncle at its base and tear the inflorescence from the bottom.
Root onion mite
An ubiquitous pest. Penetrates into the bulb through mechanical wounds, turning bulb scales into brownish dust. The vital activity of the onion mite leads to decay and drying of the bulbs.
Ways to deal with onion mites:
• Destruction of diseased or weakened plant residues.
• Selection for storage only healthy and intact bulbs.
• During storage, 1 kg of bulbs is sprinkled with 20 grams of sulfur or chalk.
• 30-minute pickling of the bulbs in 0.3% actellic, 0.3% volotone, 0.2% etaphos.
• Spilling under the root during the appearance of the flower arrow, buds and after flowering with solutions using the above assistants.
Hoverflies
Onion and tuberous hoverflies are very fertile and can lay up to 100 eggs, placing them in 3-10 eggs on scales, leaves, plant neck, or near bulbs under lumps of earth. Their voracious larvae, replenishing their weight at the expense of the plant, turn the affected bulbs into a black rotting mass.
Ways to combat hoverflies and their larvae:
• Bulbs that are damaged by hoverflies and their offspring are discarded during the growing season. These include plants that are stunted in growth, with yellowing leaves, or not at all.
• Even healthy bulbs dug out in problem areas, it is useful to pickle for half an hour before drying in 0.3% solutions of amiphos, actellik, basudin or voloton.
• During plant growth during the hoverfly period, the soil and plants are sprayed a couple of times with an interval of 10 days. For spraying, use 0.3 percent etaphos. The larvae are destroyed by watering the plant under the root with a 5% ash infusion at the rate of 5 liters per square meter of soil. Alternatively, chemical solutions are used.
Nematode
Yellowish-white to light green stripes or spots on hyacinth leaves are a sign of damage to the plant bulb by nematodes. Nematodes make their way into the bulbs when plants are planted in nematode-infested soil, and may also remain in dust and bulb debris in storage facilities, infecting healthy bulbs. Also, infection of healthy bulbs from sick ones occurs in the open field.
Ways to combat nematodes:
• For prevention, crop rotation is used.
• Dug out bulbs affected by nematodes are stored for 3 weeks at a temperature of 30 degrees. Then they are kept in warm water for a day. Then they are heated in hot water (44 degrees), moreover, large bulbs are kept in hot water for 4 hours, and small ones - for 2.5 hours.
• After processing, carry out a thorough culling, destroying nematode bulbs.
Hyacinth mite
The mite is harmful during the entire growing season, stopping the growth of the plant, disfiguring it, nibbling the bulbs.
Ways to combat hyacinth mite:
• Bulbs are pickled with rogor.
• During the period of plant growth, the soil is watered with actellik, celtan, rogor.
• Use healthy bulbs for planting, maintain good agricultural practices and correct crop rotation.
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