How to do the dragon spitting beads long insects? pest control of dragon spitting beads / 2 insect pests 2 diseases

When we breed dragon spitting beads, the last thing we want to encounter is diseases and insect pests, this kind of problem is very harmful to the plant, which will not only affect its ornamental, but also lead to plant death. What about the dragon spitting beads and growing bugs? How to prevent and control diseases and insect pests of dragon spitting beads? Next, the editor will take you to learn about it.

First, what about the dragon spitting beads and growing bugs? find the reason.

If you want to know what to do with the dragon spitting bead worms, first of all, we have to understand what kind of insects grow on them, so that we can deal with them pertinently, because the treatment methods of each kind of diseases and insect pests are different, and the details are described in detail below. Friends who are troubled in this regard can learn about it.

II. Disease and pest control of dragon spitting beads (insect pests)

Shell worm

The shell insect is a kind of pest with high incidence in the process of dragon bead growth. it mainly harms the leaves, branches and fruits of the plant. it will live on the branches and fruits of the dragon beads for life, resulting in yellowing of leaves and withering of branches and shoots. In serious cases, it will also lead to the death of the whole plant.

Control method: when controlling the diseases and insect pests of this kind of dragon spitting beads, we can spray it with 1000-1500 times of the insecticide mixture of 40.7% Lesbon EC and 80% dichlorvos EC in the proportion of 1 to 1.

Whitefly

Whitefly is a very small pest, and the largest one is no more than 3mm. This pest mainly feeds on the juice of dragon beads, which will gradually ingest, resulting in a large loss of nutrients and finally withering, which is one of the most harmful diseases and insect pests.

Control method: the reproductive ability of this pest is very strong, so we must deal with it as soon as possible. We can use 1200 times of omethoate EC to spray it.

III. Pest control of dragon spitting beads (disease)

Leaf spot disease

Leaf spot disease is a relatively high incidence of diseases and insect pests in dragon spitting beads, and its high incidence period is from August to September every year, so we should pay special attention at this time. Leaf spot disease mainly threatens the leaves of the plant, when the disease occurs, there will be many round disease spots on the leaves, which will gradually expand with the passage of time, and finally cause the leaves to fall off gradually.

Control method: in the prevention and control of leaf spot disease, we can use 38% cuproloxil 800-1000 times to spray the diseased plant, spray once every 5-7 days, 2-3 times can be cured.

Powdery mildew

Powdery mildew is a disease caused by fungi. During the onset of the disease, many white powdery mildew spots will appear on the leaves of the dragon, which will gradually cover the whole leaf with the passage of time, affecting its photosynthesis and interfering with its normal metabolism. resulting in premature senility.

Prevention and control methods: for this kind of diseases and insect pests, we can choose to use 1000 times of 2% antimycin water agent or 15% trimethoprim solution, usually once every 3-6 days, 3-6 times in a row.

Prevention and control of main diseases and insect pests of dragon spitting pearl

Longtuzhu belongs to Verbenaceae, which can cause leaf spot disease, which is caused by the infection of half-known bacteria. At first, it was just a small brown spot. If it is not treated in time, it will produce large black spots, and the leaves will wither and yellow and die.

Therefore, once found sick, should immediately use chlorothalonil 800 times liquid, foliar spray, once every 7-8 days, 2-3 times in a row, can be basically cured.

The main pests are shell insects, whitefly and so on.

Prevention and treatment: can be sprayed with 1000 to 1500 times of omethoate. The leaves caused by alkali to the soil can not stretch normally, and the leaves are green and yellow, which can be irrigated with 0.2% ferrous sulfate solution. For mosaic disease and fungal disease, the diseased leaves should be removed in time, ventilation should be strengthened, and the disease can be controlled by keeping the leaves dry.

How to reproduce dragon spitting beads? two propagation methods of dragon spitting beads (sowing / cutting)

For people who love flowers, dragon spitting beads must be no stranger, its white calyx, bright red Corolla, shaped like a swimming dragon spitting beads, looks extremely beautiful. In life, many people raise a pot of dragon spitting beads at home, but is a pot of dragon spitting beads too monotonous? It's time to breed a pot on your own, so how do dragons spit beads? Here are two common breeding methods of dragon spitting beads. Let's go and have a look.

First, how to reproduce, sow / cuttage dragon spit beads

As a novice in aquaculture, you can know the breeding method of dragon spitting beads; but if you are an old hand, in addition to raising, you should also master the breeding method of dragon spitting beads, which can not only make dragon spitting beads become more pots, but also increase the fun of breeding. As for how to reproduce dragon spitting beads, there are two common methods: sowing and cutting. next, let's take a look at the specific operation.

2. Two propagation methods of dragon spitting beads (1) sowing and propagation of dragon spitting beads

How do dragon spit beads reproduce? The sowing method is generally used, and the sowing time is generally chosen from March to April in spring. Before sowing, soak the seeds in warm water for 12 hours, and then sow them in a shallow basin. Because the seeds of the dragon spit beads are compared, the row spacing is kept at 3 × 5 cm. After that, keep the room temperature at 20-25 ℃, the seedlings can emerge in about 10 days, and go to the pot when the seedlings are 10 cm high.

Because the sown dragon spit bead seedlings will grow very slowly, and the vegetables can blossom in the next year, so those who want to let the dragon spit beads blossom in the same year can be propagated by cutting. It is worth mentioning that the seedlings sown will be healthier and stronger and will look more at ease. Next, let's take a look at the developed cutting propagation methods of Longtuzhu.

(2) Cuttage propagation of dragon spitting beads.

1. Cutting time

How do dragon spit beads reproduce? In addition to sowing, of course, the most commonly used is cutting, but dragon bead cutting, a wide range of choices, we can use branch cutting, leaf bud cutting, root cutting can be used. As for the cutting time, it is generally carried out in spring and autumn, which is the growing period of dragon spitting beads, its activity is high, and the cutting survival rate is the highest.

2. Cutting substrate

According to the growth habits of dragon spitting beads, peat, perlite, rotten leaf soil, river sand and vermiculite can be used. Keeping the temperature of the insert bed at about 26 ℃ will be very beneficial to rooting.

3. Cutting method

① branch cutting

On Longtuzhu potted plant, one-year-old branches with strong growth were selected and cut into 2 Mel 3 segments as cuttings. The apical leaves were retained and 1 cm 2 was cut off. Then insert the cuttings into the prepared substrate, maintain them in the shade, maintain the humidity, take root in 20 days, and plant in the pot after 35 days.

② leaf bud insertion

On the pot culture of dragon spitting beads, the lateral buds on the branches were selected as cuttings, cut with a small branch, and then cut in the prepared substrate. Note: leaf buds should be exposed to the outside of the substrate, and then shaded and maintained for 20-25 days can take root, waiting for leaf buds to germinate and put on the pot.

③ root insertion

This cutting method is generally combined with changing pots. Cut the rhizomatous stolon on the soil into 8Mel 10cm segments as cuttings, and then insert it into the prepared substrate. Keeping the temperature of the insert bed at about 26 ℃ will be very beneficial to rooting.

Generally speaking, breeding dragon spitting beads, whether sowing or cutting, can survive, but the most suitable for family reproduction is still cutting. Of course, the method is dead, people are alive, we can according to the actual situation, choose the method to breed. With regard to the breeding method of dragon spitting beads, this is the end of the editor's introduction, hoping to bring help to everyone.