There are many pests that harm camellias, but the most common are the following:
(1) scale insects.
There are more than a dozen of these insects, which are pests that seriously harm camellias and occur in the summer with high temperatures, high humidity, and poor ventilation. This worm often intensively on shoots, leaves, veins, piercing the plant body with mouthparts, sucking juice. To stop the growth of Camellia and cause malaise. When severe, a large number of leaves fall off and baldness does not bloom.
Control methods: 1 The main method is to catch people. 2 If the diseased area is large, more insects can be used. 25% imidophos plus 600-fold aqueous solution, spraying once every one week and 2 weeks, continuous spraying 3-4 times can kill scale insects.
(2) Tetrachlorotoxin.
This insect, also known as tea caterpillar, is found throughout China and is an important pest that damages Camellia. Its larvae are harmful to the leaves, and sometimes the tender school and buds are also harmed and seriously affect the growth and flowering of the camellia. The larvae of this larvae are poisonous and can be easily touched by the human body, causing redness and itching. Adult body back and wings yellow-brown. May-September is a jeopardy for its larvae.
Control methods: 1 During winter, r should carefully look for and remove the egg mass. 2 When the larvae are clustered, the insect leaves can be taken off and stamped out. 2 In the larval stage, 90% trichlorfon 1000 times; or 50% killer pine EC 1000 times; or 50% phoxim EC 3000 times, the effect is good.
(3) Aphid moth.
This worm is also called a evasion of the worm. Its larvae eat and damage the tips of the leaves and leaves the leaves forming holes. When the damage is severe, the leaves can be eaten and even the whole plant can die.
Control methods: 1 In the winter season, the damaged leaves or branches should be trimmed and cut off. 2 If the affected area is small, the larvae can be manually killed. 2 larvae damage period, can be used 90% trichlorfon 1000 times the original drug; or 80% dichlorvos milk 1000 times spray control, the effect is very good.
(4) Locusts.
This worm is one of the important pests that harm Camellia. It uses the mouthparts to pierce the tender shoots, tender shoots, and young leaves, sucking the juice from the plants, causing the affected leaves to curl, shed, and die.
Control methods: 1 can be used 40% of emulsifier omethoate plus 1000-1500 times aqueous solution spray. 9 with 80% of the emulsion of dichlorvos plus 1000-1500 times solution spray. Spray once every 3-5 days, effective for 3 consecutive times.
(5) Tea shoots.
This worm mainly damages young leaves of Camellia oleifera. It is hollow and dead, and is easily broken. Its larvae are small. Dark brown, chest and abdomen honey yellow, sparse yellow hair. The adult body is dark gray with metallic luster, antennae filamentous, and the forewings are long and narrow, with many small black spots. The outer edges and trailing edges of the forewings and the periphery of the hind wings are long ciliate.
Control methods: 1 When introducing the seedlings of the hawthorn, attention should be paid to the inspection and the tea seed moths should not be mixed with the camellia seedlings. 2 In the period of larval submergence leaves, remove the leaves; cut off the affected shoots in time of invading shoots, and cut the mouth to be 15 cm below the defecation holes to remove the larvae. As soon as you find pests and leaves, you must immediately cut out and burn them. 2 before the larvae switch to the tip of the shoot, use 40% omethoate EC 1000 times; or 80% DDPO EC 1500 times spray control, spraying should pay attention to wet back.
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Function Description:
• laser light:
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[Mechanism] through the wavelength of 808nm, single laser output of the maximum power of 5mW laser irradiation of the nasal cavity or acupuncture points to the blood into a large number of photons, photons absorbed by blood cells and converted into internal energy, activation of blood cells, improve its ability to deform Oxygen-carrying capacity, improve blood flow and viscosity, improve blood rheology parameters, play to eliminate inflammation, reduce blood viscosity and lipid levels.
global mode corresponding function: air bag kneading + heating + laser irradiation + infrared.
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Applications:
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Attention:
Laser therapeutic instruments are recommended to be used under the guidance of professionals.
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