Rootworm - methods of control and prevention
There are such types of mealybugs that are able to feed on parts of the plant that are underground, and not just above it. Root worm (Rhizoecus falcifer) has a white color and can reach a length of 2 or 3 millimeters. It usually settles on the root system of a plant in well-aerated soil. It is not easy to detect this pest, and it is possible only during the transplant.
External signs of damage
The affected plant partially loses its turgor, it has a sluggish appearance. And if you pour it, then there will be no reaction. Leaflets turn yellow and deform, and then die. If the lesion is very strong, then the pests can be seen on the root neck (the place where the stem goes to the roots). And also they can be noticed during plant transplantation.
During transplantation, it is necessary to inspect the earthen coma well for prevention. This pest prefers to live in fast-drying, as well as well-aerated soils. In this regard, the root worm most often settles in a pot where a cactus or other succulent grows. It does not tolerate excess moisture in the soil. Therefore, in order to prevent, you need to constantly maintain the soil slightly moist and this applies to all plants, even those that do not like excess moisture.
How to fight
It will be necessary to treat the infected soil 2 or 3 times, while the interval between treatments is 7-10 days.In order to completely get rid of the offspring of the mealybug, it will be necessary to repeatedly completely wet the soil in the pot.
Also, if you wish, you can use the special drug Appleood - this is a white powder, which must be applied directly to the substrate. It is dissolved in water, and the plant is abundantly watered with the resulting solution until the water pours out of the drainage holes.
You can still transplant the plant, while thoroughly washing the root system, and the pot must be sterilized. The plant must be planted in new land. In the case when the plant is slightly affected, it is entirely possible to cut off the infected parts of the root.
After 1-2 weeks after the 1st treatment, it is recommended to carry out the second.
Folk remedies in the fight against mealybug
In the fight against this pest, a hot root bath has proved its effectiveness. You will need a large pot filled with water. Put it on the stove and bring the water to 55 degrees. Then you need to suspend the cactus in such a way that its entire root system is immersed in liquid (up to the root neck). In water, the plant should spend about a third of an hour. Then it is removed and thoroughly dried for about 15-20 hours. Then the cactus needs to be planted in a new pot and fresh soil.