Cactus has white spots, how to deal with cactus with white spots

You don't have ** It's really hard to say.

It's also possible that the sun has seen too much and the ball has sunburned.

And then there's what you said, if it's a worm, you take medicine and kill the worm.

But it still needs to be removed slowly, and there is no other way.

Or just throw it away and buy one

Whoop the sun. Water less.

1. Spraying insecticides: white spots will appear after the cactus grows white shield scales, and imidacloprid should be sprayed to control insects. 2. Put aphid wasps:

The aphid wasps were released into the breeding environment to inhibit the growth of white shield scales. 3. Replace the potting soil: cactus lignification will have white spots, and the nutrient soil can be replaced for cultivation.

4. Water and fertilizer management: water once a day during the growing season, and apply fertilizer once every half a month.

1. Spray insecticides

After the cactus has a white shield scale, there will be a phenomenon of white spots, at this time it is necessary to use imidacloprid, dimethoate and other agents to spray the cactus with water, all the pests are eliminated, in order to improve the effect of deworming, it is necessary to spray once a week, spray three times in a row.

2. Put aphid wasps:

In order to avoid cacti suffering from white shield scales, in the process of breeding, the aphid wasps can be put into the breeding environment to inhibit the reproduction and growth of the white shield scale.

3. Replace the potting soil

It is normal for cactus to have white spots, in the process of plant growth, there is a phenomenon of lignification, white spots will be formed on the stems and leaves, and it will turn into age spots after a long time.

4. Water and fertilizer management

Cactus has strong drought tolerance, stems and leaves have water storage, in the process of growth, the demand for water is low, you can water every other week when breeding, and drain the plant in rainy weather to avoid rhizome rot, but after the cactus enters the growth period, it should be watered once a day and fertilized once every 15 days.

When the cactus spot should be combined with a number of reasons to deal with it in a timely manner, if the soil is improper, it should be treated in a timely manner, and the mixed soil of peaty soil and fine sand and decomposed organic fertilizer should be used as the culture soil, and the water should be controlled in time to control the watering, and the root system should be removed and disinfected after potting, and then the watering should keep the potting soil dry.

1. Soil replacement treatment

Cactus likes to grow in the soil with strong permeability and rich in organic matter, if the selected soil is too poor or poorly drained, it will lead to the growth of the root system is blocked, and the stems and leaves are prone to spots.

2. Reduce moisture

Cactus has a strong drought tolerance, if it is watered too much during the usual maintenance, resulting in blocked root drainage, there will be a lot of spots on the stems and leaves, and it will gradually yellow and wilt, so what to do if the cactus has spots, at this time should control the watering in time, take out the root system and disinfect it with potassium permanganate solution, and keep the potting soil dry after watering.

3. Strengthen ventilation

Cacti like to grow in a well-ventilated environment, if the plant is often moved to a closed environment during the maintenance period, it is easy to breed a lot of spots, and the plant will not grow much, it is best to strengthen indoor ventilation and ventilation in a high temperature and humidity climate, or put it on the balcony outdoors is the best.

4. Prevent pests and diseases

When the cactus is affected by gray mold, rust or brown spot during the growth period, there will be a lot of irregular spots on the leaves, which will eventually lead to the wilting of the plant, it is best to cut off the diseased plants and destroy them, strengthen the surrounding air circulation, control watering, and spray a thin carbendazim or dimethoate solution every half month.