What to do if there are insects in red leaf heather, 7 ways to control red leaf heather diseases and

Red leaf heather is better resistant than ordinary trees during the growth process, but if the environment is too humid or the management is not in place, it can easily lead to the occurrence of pests and diseases; Generally, the main pests and diseases that occur are silkworms, scale insects and leaf spots, and if you pay a little attention, you can avoid the threat of these pests and diseases; We have special control measures for these pests and diseases, and the specific characteristics and control methods of pests are:

Insect pests of soil silkworms: 1. Symptoms: There will be the occurrence of soil silkworms in the red leaf heather seedling stage, it is mainly concentrated in the leaves and roots of seedlings, if the seedlings are found to be wilting, there are obvious signs of pest gnawing around the roots or leaves, it may be caused by the appearance of soil silkworms, which is generally easy to find on the leaves.

2. Method: When found, it is necessary to prevent and control it in time, we can spray it with silkworm insecticide or liquid insecticide, which can have obvious control effects. And to track the insecticidal effect, if not thorough, it will also endanger the growth of seedlings, spraying on the leaves can be, if the root position is not easy to find, we can turn over the surrounding soil, you can see the soil silkworms in it, you can kill it directly.

Scale insects. 1. Symptoms: Scale insects will spend the winter as adults and larvae in the cracks and leaf curls of the trunk and branches, and some are not easy to find, which is the most serious kind of pests and diseases; The larvae of scale insects like to infest the young shoots, petioles, and branches of red-leaved heather in groups.

2. Method: We must ensure that the management of seedlings is in place, and the dead leaves and rotten leaves should be removed in time to ensure the normal growth of seedlings and reduce the occurrence of environmental pests and diseases; For the prevention of scale insects, we can apply pesticides to avoid insect pests during the spring shoot extraction period, and spray pesticides with quick culling, hydroamidophos, and insect multi-clear emulsifiable concentrate.

Leaf spot. 1. Symptoms: When the red leaf heather appears leaf spot disease, there will be small brown spots on the leaves, if it is not found in time, there will be a large area of disease spots, and a large area of disease spots will lead to the death of the whole tree of red leaf heather, so the management should be in place during the seedling period, and the baneda bika foliar fertilizer can be sprayed to improve the stress resistance of heather.

2. Method: We can prevent normal seedlings, and we can spray Bordeaux liquid to prevent them; For the diseases that have occurred, carbendazim and methyl tobuzine can be used to prevent them, and the specific spraying methods are instructed on the solution, and you can also consult.

I thought there were 7 ways to do it

1. Aphids.

Aphids are one of the pests and diseases of red leaf heather and its control, mostly occur in spring, when the red leaf heather begins to germinate young branches, a large number of aphids will suck the juice on the young branches, causing the red leaf heather leaves to curl up, at this time it is necessary to dilute about 1000 times with 25% fast killing emulsifiable concentrate**.

2. Scale insects.

Scale insects mostly grow in the top bud of red leaf heather, if the scale insects are serious, it will cause the leaves to gradually fall off, at this time, 40% dimethoate can be sprayed, and at the same time, carbendazim solution is poured every other month, and the agent can be sprayed continuously about 3 times to achieve effective **.

Symptoms and treatments:

1. Leaf spot.

Red leaf heather also often appears leaf spot disease, mainly poor ventilation, resulting in plants suffering from bacteria and viruses, if the disease is not timely, the leaves will gradually wither and fall, you can use 75% chlorothalonil wettable powder diluted with water 1000 times to spray the plant, about 4 times in a row can ** leaf spot.

2. Root rot:

Red leaf heather likes to grow in sandy soil, if the soil compaction is serious and the root system of the plant is damaged, the plant will gradually wither, it needs to be dug out of the soil, after pruning the rotten roots, soak it in chlorothalonil solution for half a day, and plant it in sandy soil after the bacteria and viruses are fully killed.

Red leaf heather was more resistant, and no devastating pests and diseases were found. Common red leaf heather diseases and insect pests include blight, cataplexy, leaf spot, gray mold, leaf spot, anthracnose or scale insects, etc., which often cause large-scale death of red leaf heather in a short period of time and bring serious losses to seedling farmers.

Red leaf heather gray mold and its control.

Botrytis is mainly caused by small spots on the stems, leaves, flowers, fruits and branches of plants, which should initially be water-stained and gradually expand into large black spots, and show irregular wheel-like diseased areas that continue to expand until they rot.

In the process of breeding, pay attention to the timely elimination of stagnant water, reduce humidity, find that the disease is cleared in time, and can also be sprayed with pesticides.

Red leaf heather leaf spot disease and its control.

Leaf spot disease mainly affects the stem and leaves of the plant, first small spots, and then gradually expand, on the front of the leaf is reddish-brown, on the back of the leaf is yellowish-brown, if the leaf spot is not treated in time, then the whole plant will die.

Timely sweep the fallen leaves to eliminate pathogens, and spray pesticides for prevention and control.

Red leaf heather aphid and its control.

Aphids will gather in groups on the young leaves and young branches of red-leaved heather, and use their to suck the sap and nutrients of plants, so that the leaves curl up and affect the ornamentality of food, causing great harm in the dry season.

Red leaf heather scale insect and its control.

Scale insects mainly damage the top buds and branches of red leaf heather, and even spread all over the branches and leaves of red leaf heather when the scale insect infestation is serious, affecting the ornamental value of red leaf heather.

Red leaf heather leaf spot disease mainly affects its leaves and stems. When the leaves of red-leaved heather are damaged, small brown spots first appear, and then gradually expand and develop into polygonal lesions. The lesions are reddish-brown on the front of the leaves and yellow-brown on the back, and when the disease is severe, the lesions can be connected into lumps, or even the whole plant dies.

Methods for the prevention and control of red leaf heather leaf spot disease:

Physical control: combined tending and management in winter and spring, concentrated cleaning of fallen leaves, and elimination of overwintering pathogens;

Chemical control: preventive drugs: dilute 500 times with floating green clear circles and evenly spray for garden cleaning treatment; Control the occurrence of pests and diseases.

Prevention and control drugs: use 800-1000 times dilution of industry bantong to spray evenly.

Red leaf heather should strengthen management, pay attention to eliminate stagnant water in the rainy season, reduce humidity, focus on cleaning fallen leaves, eliminate the source of overwintering, leaf spot disease can be sprayed Bordeaux liquid prevention, carbendazim, methyl tobuzin can be used to prevent and control the onset of the disease, gray mold can be prevented and controlled by dysen zinc spray, red leaf heather appears silkworm, can be sprayed with liquid insecticides, spicy pepper, borer can be sprayed with phosphorus-containing insecticides.

Common diseases in the cultivation of red-leaved heather.

1. Leaf spot. It mainly harms the growth of leaves and stems, when the leaves are damaged, small brown spots appear first, and then slowly expand, when the disease is serious, the lesions will be connected together, and even the whole plant will die.

2. Botrytis cinerea:Botrytis occurs under low-temperature, rainy and humid conditions, affecting the growth of young branches, young stems, leaves, flowers and fruits.

The main insect pest of cultivated red-leaved heather.

1. Silkworms:Red leaf heather juvenile, there are wounds where it is easy to breed silkworms, will eat the roots of the plant, if you find that the seedlings caused by the growth suddenly lodging or beating, you can pull it out, check the roots, there are signs of gnawing, it is likely to be the soil silkworm infestation.

2. Mao Spicy:It mainly occurs in spring and summer, if the control is not timely, the insect pest can continue to autumn, and the leaves will all be eaten, causing serious harm to the growth of red leaf heather.

3. Drillworm:Generally, it occurs on the red leaf heather that is more than 3 years old, and the longer the maintenance time, the higher the incidence.

Red leaf heather pest control.

1. Diseases:Usually strengthen the maintenance and management, pay attention to the elimination of stagnant water in the rain grinding season, reduce humidity, focus on cleaning fallen leaves, eliminate the source of overwintering, leaf spot disease can be sprayed Bordeaux liquid prevention, carbendazim, methyl tobuzin prevention and control, gray mold can be used for the prevention and control of zebren.

2. Pests:Red leaf heather appears soil silkworms, can be sprayed with liquid insecticides, spicy pepper can be sprayed with phosphorus-containing insecticides, need to be sprayed in the whole field, the effect is relatively good, borers are also sprayed with phosphorus-containing insecticides, into the insect holes diluted with water insecticides, can also be properly sprayed on the trunk.

The occurrence of red-leaved heather aphids and the prevention of Ming Douqiao, aphids gather in groups on the young leaves and delicate branches of red-leaved heather, suck the sap of the plant with their prickly mouths, nourish the leaves, make the leaves curl, and cause harm in the dry season. The occurrence and control of red leaf heather scale insects mainly harm the top buds and branches of red leaf heather, and when the scale insects are serious, the branches and leaves of red leaf heather will also be all over the place, affecting the ornamental value of red leaf heather.

Phoebe rubrum has strong resistance, but if it is not properly managed or the nursery environment is poor, gray mold, leaf spot or scale insects, soil silkworms and other hazards may occur.