-
Common pest and disease control methods for lilies, explained in one article
Lilies originated in China. They are distributed in the southeast and southwest, as well as Henan, Hebei, Shaanxi and Gansu, where wild and cultivated plants grow in various places, mainly used as cut flowers and for garden displays as potted ornamentals. The bulbs are used for food and medicine, the fresh flowers contain aromatic oil used as a fragrance, and the fruit is eaten. It is a cold-hardy, autumn-planted scaly bulbous herbaceous flower. There are many cultivated varieties, and besides white, the flowers also come in yellow, red, light red, variegated and other colors. 1. In the middle and late growth stages, the bulb and the root-growing part of the stem are prone to root rot, showing bright dark-brown decay spots; at the base of the plant stem, base rot easily occurs, causing the leaves to droop and turn yellow; on the leaves
-
Control Methods for Penicillium Rot of Lily Bulbs
Symptoms: Occurs during storage. The lesions on the bulbs are sunken, dark brown, and covered with a blue-green mold layer (spore masses). The inner scales gradually rot, eventually causing dry rot of the bulb. Generally, it takes two to three months for the bulb to completely rot. Pathogen: Penicillium cyclopium Westl., a fungus belonging to Deuteromycotina, Hyphomycetales, Penicillium, Penicillium cyclopium. Colonies are dark blue-green, with no concentric rings or indistinct rings, granular or clustered, with a pale pinkish reverse, occasionally yellow or with a purple tinge. Conidiophores are 3 to 3.
-
What are the control methods for lily wilt disease
Latin scientific name: Fusarium oxysporum f. sp. lili Snyder et Hansen. Crops affected: lily. Symptoms: Also known as stem rot, it is an important disease in lily production. Infected plants initially show slow growth, and the lower leaves turn yellow and lose their luster; afterward the symptoms gradually spread upward, and finally the leaves of the whole plant wilt and droop, turn brown, and die. In addition, Fusarium oxysporum f. sp. lili can also infect the base of the outer scales of the bulb, where brown necrosis or rot appears on the basal plate, causing
-
Symptom Identification and Control Methods of Lily Gray Mold
Lily, belonging to the genus Lilium in the family Liliaceae, is a perennial herbaceous plant. In recent years, lily cultivation has been severely threatened by diseases, mainly including lily gray mold (leaf blight), Phytophthora blight, basal rot, and viral diseases. These diseases often occur together, compounding the damage. Among them, lily gray mold has the greatest impact on lily growth and cut flower quality, and can even affect the propagation of lily bulbs. Lily gray mold is a commonly occurring disease. It mainly damages leaves, but can also infect stems and flowers. Infected lily leaves and floral organs frequently develop symptoms such as leaf scorch, deformed flower buds, and wilting petals in the later stages.
-
Control Methods for Lily Mosaic Virus (TuBV)
Symptoms: Diseased plants show mosaic symptoms on the leaves, and the colors on the same flower are uneven, appearing mottled. Pathogen: Tulip breaking virus (Tulipebreakingvirus, TuBV). This virus occurs on tulips worldwide, but its frequency of occurrence on lilies is relatively low. Transmission route: TuBV has a narrow host range, occurring on tulips and lilies. It can be transmitted through bulbs and planting stock. Aphids can transmit the virus in a non-persistent manner. Control methods: 1. Use healthy planting
-
Control Methods for Lily Mosaic Virus (CMV)
Symptoms: Chlorotic mottling or necrotic spots appear on the leaves. Pathogens: Lily latent virus [Lily latent virus] and Cucumber mosaic virus [Cucumber mosaic virus] (abbreviated as CMV). Lily latent virus is widespread in Lilium plants; some lilies show no symptoms after infection with this virus, while others develop chlorotic mottling symptoms. Cucumber mosaic virus causes chlorotic mottling symptoms, and if this disease co-occurs with lily latent virus, lesions develop. Transmission route: The green peach aphid and other aphids are the vector insects that spread the virus.
-
What are the control methods for common lily diseases?
Several common diseases of lilies: lily mosaic virus, bulb rot, leaf spot, leaf blight, etc. Mosaic virus is also called lily latent mosaic virus. When the disease breaks out, chlorotic spots or necrotic spots of uneven depth appear on the leaves, the affected plants are stunted, the leaf margins curl, and the leaves become smaller. Sometimes spindle-shaped light brown lesions appear on the petals, the flowers are deformed, and they do not open easily. Control methods: 1. Select virus-free bulbs for propagation; 2. Strengthen the control of aphids and leafhoppers; 3. Promptly pull out and destroy diseased plants. Leaf spot disease: when this disease first appears, the leaves
-
Identification and Control Methods for the Lily Pest Cotton Aphid
Its harm to plants is second only to the green peach aphid, and it also has many host species, mainly chrysanthemums, lilies, and others. Morphological features: female aphids are winged or wingless, extremely small in size, initially pale yellow, later black. Legs and antennae are yellow-white. Male aphids are all wingless, 1/3 shorter than female aphids, and similar in color. Eggs are oval, yellow when first laid, turning black when hatching. Nymphs are gray-white at first, later turning yellow. When mature, those with wing buds on the thorax and back are winged mother aphids, while those without wing buds are wingless mother aphids. Damage habits: the cotton aphid can produce 20 generations a year, overwintering as eggs on plant
-
What are the control methods for lily pests?
The main lily pests include aphids, scarab beetles and others. In addition, there are also damage from root-knot nematodes, cutworms and others. The peach aphid is the most widespread aphid pest on plants. Control: eliminate overwintering sources of the pest, clear away nearby weeds, and carry out thorough clearing of the garden and field. During the aphid damage period, spray 40% dimethoate or omethoate at 1200 times dilution, or aphid-killing pine emulsion at 1500 times, or 2.5% fish essence at 1000-1500 times. Protect natural enemies, that is, protect the seven-spot ladybird, hoverflies and green lacewings, etc. White grubs are the larvae of scarab beetles, mainly
-
Identification and Control Methods of Common Oyster Mushroom Diseases
Why do some oyster mushrooms grow small white lumps in the later stage of growth? This occurs more in black varieties and rarely in grayish-white varieties. The same cultivation method and substrate were used. Why does this happen? How should this contaminant be controlled? Every stage of oyster mushroom production can suffer from contaminant contamination, and it must be controlled promptly. The common contaminants are mainly the following: (1) Bacteria mostly occur on the slant of mother cultures, while the harm to stock cultures and cultivation cultures is relatively mild. Bacterial contamination is characterized by rapid reproduction, generally becoming visible 10 to 24 hours after inoculation.
条件筛选