Parthenocissus parthenocissus pest control methods, 3 diseases 1 pest / prevention should start from daily maintenance

Although the breeding method of Parthenocissus is very simple, and its ability to adapt to the environment is also very strong, sometimes it will encounter the invasion of diseases and insect pests, once there is no good prevention and treatment, it is easy to cause plant withering and death. then years of planting efforts will be wasted, and how can planting be avoided? Let's take a look at the methods of disease and insect pest control of Parthenocissus.

Control methods of diseases and insect pests of Parthenocissus tricuspidata

1. Powdery mildew

Cutting or seedling growth stage may interfere with powdery mildew, it will harm the stems and leaves of Parthenocissus, so that yellow shops appear on the leaves, and then grow a white powdery mildew layer, which will form a large mildew spot in the later stage, hindering the photosynthesis of the leaves and causing the leaves to decline in advance.

Prevention and control methods: when watering, do not water too much, try to water from the edge of the basin, reduce the frequency of watering stems and leaves, apply more phosphorus and potassium fertilizer and less nitrogen fertilizer, strengthen ventilation and reduce humidity. 1000 times solution of 15% trimethoprim was used at the initial stage, and 1000 to 1500 times of which 10% polyantimycin solution was used in the later stage.

2. Leaf spot

The main cause of the disease is that the density of the upper branches and leaves of the plant is too high, the environmental humidity is too much and the ventilation is poor. The symptom is that there are round disease spots on the leaves of Parthenocissus parthenocissus, then become irregular shape, brown disease spots appear on the stems and petioles, and finally the leaves wither and curl.

Prevention and treatment: remove the diseased leaves, reduce the spraying of plants, and prune the branches and leaves to increase light transmittance and good ventilation. 1000-fold solution of 50% topiramate and 80% mancozeb were sprayed at the time of onset.

3. Anthrax

Anthrax is the most harmful disease and pest control of Parthenocissus. It will cause brown disease spots on leaf tip and leaf edge, affect the growth of its tendrils, lead to poor growth, and there will be small black spots on the disease spots. One of the causes is that the temperature is too high.

Prevention and control methods: usually pay attention to increase the application of phosphorus and potassium fertilizer to improve the disease resistance of Parthenocissus, spray 50% anthrax Fumei wettable powder 800x liquid, can also be sprayed with 1000 times of chlorothalonil, the temperature is too high can be appropriate shading.

4. Aphids

Aphids will use mouthparts to pierce the leaves of Parthenocissus Parthenocissus to suck its juice, causing the injured leaves to turn yellow, fall early, and so on. While sucking, it will also secrete a kind of honeydew, which is not easy to find, but it will attract ants, snails and so on, causing greater damage to plants.

Prevention and control methods: the prevention of aphids is mainly based on prevention, the method is to strengthen daily maintenance and management according to the breeding methods of Parthenocissus, to keep the environment clean, moderate humidity and not too shady, and the treatment method is to spray 50% malathion emulsion 1000-l500.

How to manage Parthenocissus chinensis? Cutting Propagation techniques of Parthenocissus mollissima

Parthenocissus tricuspidata likes light, slightly shade-tolerant, cold-resistant, heat-resistant, strong adaptability to soil and climate, and grows better on fertile sandy loam. At present, it can be planted in the walls of the house, the fence, the entrance of the garden and so on. It is an excellent color climbing plant. Let's take a look at the cutting propagation techniques of Parthenocissus officinalis.

Parthenocissus vulgaris is distributed in Zhejiang, Fujian, Jiangxi, Hubei, Hunan, Guangdong, Guangxi, Yunnan, Guizhou and other places. Most of them are born in the evergreen broad-leaved forest or forest edge of acid yellow soil and yellow brown soil, and the vertical distribution is 700 ~ 3500m above sea level. Like the overcast and wet environment, growing exuberantly under the evergreen broad-leaved trees. Like light, but also more shade-resistant, more cold-resistant, can withstand-10 ℃ low temperature. Acid-loving soil can also adapt to neutral soil and slightly alkaline soil. Developed root system, strong wind resistance, strong anti-pollution ability and strong adaptability. Zhejiang Senhe seed Co., Ltd. introduced seedlings from Japan in 2007, using different plant rooting agents, different concentrations, different matrix formulations and cutting methods, as well as safety, adaptability and feasibility tests. in recent years, more than 500,000 seedlings of net bag seedlings, hole plate seedlings, seedling beds, container seedlings and green hedges have been produced, which are mainly used for slope protection and embankment, and planted in courtyards, parks, riversides, seashore and sloping land. It is a colorful leaf climbing plant with good ornamental properties and has a good market prospect.

Ear picking nursery

The soil texture is loose, fertile and slightly acidic in the nursery, and the soil is improved. Fully mature organic fertilizer is applied in winter, 3000kg per mu, ploughing, crushing, trenching, making bed, deep ditch around the field, seedbed width 120cm, footpath width 40cm, deep 25cm, trail low at both ends and slightly higher in the middle, smooth drainage.

Transplanting from the first ten days of November to March of the following year, transplanting high-quality container seedlings, plant spacing 40cm, row spacing 40cm, planting 3000 plants per mu. Dig holes at a fixed point, cut off overlong lateral roots, transplant depth is consistent with the depth of the original plant, compacted with fine soil on the root, timely pour through the fixed root water, and cover the bed with straw to moisturize and prevent the growth of weeds.

Management and protection should be watered in time, and if it rains continuously, the seedlings in the net bag seedling bed should be drained in time. Full light was given to promote the Lignification of panicles. From 15 days after transplanting, from April to August, urea or compound fertilizer was applied every half a month, each time 15kg per mu. Stop applying fast-acting fertilizer after September, apply once rotten organic fertilizer, 1500kg per mu, spread on the surface in winter, and turn into the soil when loosening the soil in March of the next year. When applying urea or compound fertilizer, combined with loosening soil and weeding, it is applied between rows, so that the stems, branches and leaves of seedlings will not be hurt. Immediately after ear harvest, apply quick-acting fertilizer, urea or compound fertilizer, 20kg per mu, loosen the soil and weed in time to prevent soil consolidation.

Cuttage propagation

According to the climatic conditions in Hangzhou, the time of panicle cutting was twice a year: the first time was in early, middle and late June, and the second time was in mid-September. The semi-lignified branches of the current year were cut, the length of the panicle was 4cm, and one compound leaf (with one bud) was retained at the upper end.

Material hole plate gauge: 72 holes, wide 27cm, long 54cm, deep 5.5cm, mesh bag specifications: caliber 6cm, deep 8cm, seedbed preparation, filling matrix, matrix formula: domestic peat: vermiculite: perlite = 5: 4: 1 (volume ratio), dry volume weight 0.20, total porosity 87.05%, porosity 26.05%, small porosity 61.00%, maximum water holding capacity 4.15. PH value 6.87, EC value 0.85mS/cm, total nitrogen 0.90%, total phosphorus 526.24mg/kg, total potassium 5632.47mg/kg, calcium 1845.25mg/kg, magnesium 2456.25mg/kg, add a certain amount of water, keep moist, stir evenly. Disinfect greenhouse elevated nursery bed, width 168cm, bed surface floor cloth, horizontally put 3 hole trays or trays (for net bags). The bed surface, acupoint plate and matrix were disinfected with 800 times potassium permanganate solution one day in advance.

The plant rooting agent was "Sensheng No. 1" (naphthylacetic acid: indole acetic acid: ABT rooting powder 6 = 6: 2: 2 by weight), the concentration was 200ppm, dipped in it for 2 seconds.

The depth of cutting is about 3cm. Immediately after cutting, water is watered. When the leaves are dried, carbendazim with 1000 times liquid is sprayed once to prevent diseases. Then covered with plastic film, inserted into a small arch shed with bamboo pieces, sealed around the film, so that the air humidity in the shed is more than 95%.

There is a sunshade net on the roof of the maintenance greenhouse, and a second sunshade net is set up 2m above the seedbed, and necessary cooling measures are taken at the same time, when the air temperature in the plastic film is above 38 ℃, it is necessary to spray under the second sunshade net, especially when it is sunny and high temperature, from 10:00 to 4 p.m., every half an hour. At ordinary times, we should pay attention to the humidity of the substrate, not too wet or too dry, and check every day. When the reverse side of the film is covered with water droplets, the air relative humidity in the small arch shed is more than 95%, and water is watered every 7-10 days.

About 50 days after cuttage cultivation, about 85% of the ears have taken root, gradually remove the film, first open both ends of the ventilation for 2 days, and then all in the evening or cloudy days. After opening, a layer of sunshade net should be covered on the top of the small arch shed, and the full light can be managed two days later. 10 days after the film is removed, the foliar fertilizer is sprayed for the first time, and then every 7-10 days, foliar fertilizer is sprayed once after watering, and 1000 times of the liquid of Vladivostok is sprayed. 0.2% urea can also be sprayed or applied. Combined with disease prevention, mancozeb was sprayed with 1000 times liquid, carefully cultivated for one year, and the seedlings of hole plate, net bag or seedling bed were developed.

The cuttings were inserted into the holes with wide 27cm, long 54cm and deep 5.5cm72 holes, and one spike was cut in each hole. After 8 months of careful cultivation, the seedlings were formed: the new shoots are longer than 5cm, the roots are developed, the plants are robust, there are no diseases and insect pests, and the rate of finished products is more than 85%.

The net bag seedling inserts the ear into the caliber 6cm and deep 8cm net bag, and each net bag cuttings one ear. After 8 months of careful cultivation, the net bag seedling is formed: the shoot length is above 5cm, the root system is developed, the plant is robust, there are no diseases and insect pests, and the yield of finished products is more than 85%.

Seedling bed seedling bed covered with floor cloth and substrate, substrate thickness 8cm, ear cuttings directly cut on seedling bed substrate, plant spacing 6cm, row spacing 8cm, nursery bed seedlings were carefully cultivated for 8 months: the new shoot length 5cm was above, the root system was developed, the plant was strong, there were no diseases and insect pests, and the rate of finished products was more than 85%.

Container seedlings transplant pot seedlings, net bag seedlings or seedling bed seedlings into caliber 12cm and deep 10cm containers, and after 12 months of careful cultivation, container seedlings are formed: rattan length above 30cm, developed roots, strong plants, no diseases and insect pests, and the rate of finished products is more than 95%.

The green fence moved 6 container seedlings into the planting slot (wide 25cm, long 90cm, deep 20cm), and the plant spacing was 12cm. a hard mesh (wide 90cm, high 120cm, grid square side length 10cm) was set up above the planting trough, and the green fence was carefully cultivated for 24 months. the seedling specifications were as follows: high 120cm, wide 90cm, well-developed root system, strong plant, full vine branches and leaves, no diseases and insect pests, and the finished product rate was over 95%.

Maintenance and management of Begonia verticillata, common insect pests

Different plants in the breeding, there will be different ways and methods, whether in daily care, or flowering, overwintering and other special periods of care are not the same, this is the unique attribute of each plant. Then let's take a look at the maintenance and management of Begonia, as well as related common insect pests. Maintenance and management of Tripterygium: (1) the cultivation soil can be mixed with 4 parts of garden soil, 1 part of organic fertilizer, 1 part of river sand and 4 parts of rotten leaf soil. In the growing season, the soil should be loosened once a month, which is beneficial to the root system of Malus sinensis to absorb nutrients. (2) for the routine management of vertical begonia, it is suitable to live in an environment with sufficient light and air circulation. The suitable temperature for growth is between 15 and 28 ℃. The plant planted in the ground could withstand the low temperature of minus 150 ℃ in winter, and the pot plant could withstand the low temperature of minus 5 ℃. Pot plants should be properly shaded in summer and humidified and cooled by spraying water at the same time. In general, in winter, there is no need to put the crabapple indoors, just bury the basin in the soil. There should be sufficient water supply in the growing season, and no stagnant water shall prevail. More water should be watered in spring and summer, and water should be watered once in the morning and evening during high temperature in summer; pay attention to drainage during plum rain and long rain to prevent stagnant water and rot roots in the basin; reduce watering in autumn to inhibit growth, which is conducive to overwintering. (3) the potted plant applied thin cake fertilizer and water once a month in the growing season, and applied quick-acting phosphate fertilizer once when flower buds appeared; during flower bud differentiation, the potted plant applied 2-3 times of available phosphate fertilizer, such as 0.1% urea and 0.2% potassium dihydrogen phosphate mixture, which could promote the completion of flower bud differentiation of Tripterygium; stop topdressing after falling leaves in autumn and before sprouting in spring. Pruning should be carried out after anthesis or dormant period, cut too long branches, promote the growth of lateral branches, increase the formation of flower buds and promote the plant to form a good plant shape. It is appropriate to turn the basin in early spring and late autumn, which can be combined with the arrangement of roots and pruning branches, and the rotten cake manure or barnyard manure can be placed at the bottom of the basin as the base fertilizer. Potted plants can make Begonia blossom ahead of time by heating measures in winter. Common pests of Tripterygium are horned wax scale, apple aphid, red spider and so on. The main disease is rust. The main results are as follows: 1. The nymphs and adults of the wax scale gather on the leaves and branches to absorb the sap of flowers, which weakens the tree potential, affects the photosynthesis of flowers and trees, and aggravates the damage degree. Solution: spray 2000 times 50% parathion EC or 50% carbaryl wettable powder 2000 times during the aphid danger period. ② sprayed Baume 5-degree stone sulfur mixture before plant germination to kill overwintering eggs. 2. The commonly used agents of rust are sulfur preparation, colloidal sulfur and internal absorbent fenuanning, etc. 3. Wax scale spray can choose 10% imidacloprid wettable powder 1000-1500 times, 40% methamidophos emulsion 1500 times and so on. 30% acephate 3 times solution can be used for hole injection.

4. It is easy to occur at the base of the trunk of longicorn beetles from May to October, and the xylem of the whole trunk can be eaten out in severe cases. Once insect droppings are found, a poison label is inserted into the wormhole. Wormholes can also be smeared with 40% dimethoate EC mixed with white latex. 5. Apple aphids are harmful to the back and tender shoots of Begonia verticillata. In the early stage, the periphery of the leaves curls down, and then curls and rolls horizontally from the leaf tip to the petiole, affecting the growth of new shoots and flower bud differentiation. Solution to aggravate the degree of harm: ① nymphs were sprayed with 1000 times 25% imidophos EC or 49% omethoate EC 1000 times or 80% dichlorvos EC 1000 times, once every 7 days. ② combined with pruning, cutting off insect branches and concentrated burning, reducing the number of overwintering base. ③ scraped the worms with bamboo or wiped the worms with sacks. 6. Red spider, also known as Ye Zeng, often sucks on both sides of the leaves, withering and shedding the leaves and affecting the growth of the whole plant. Control methods: the common diseases of Begonia verticillata are the same as those of Malus vulgaris. Solution: in winter, ① carefully found miscellaneous leather, diseased plants and diseased leaves, and burned them. ② was sprayed with a 300x diluent of a wettable powder made from a mixture of 6% diclofenac and 6% dicofol. Summary: the above is the maintenance and management of Begonia, as well as the introduction of some common pests in the process of breeding, do you all understand? Whether in daily care, or in the critical period of care, be careful, plants are fragile. More Information | what does White Rose mean | Plant Anti-computer radiation | Geranium | Rhododendron Culture methods and precautions | Lavender florescence | Indoor foliage plants | Parthenocissus | Lilium foliage | efficacy and function of mint | Culture method of mimosa | | how to raise succulent plants | Osmanthus | gynostemma pentaphyllum | hand-made roses | efficacy and function of honeysuckle | Kumquat |