What about fruit tree roots?

Fruit trees are a common kind of saplings in China, but during planting, there will be a variety of diseases and insect pests, and the root insect is one of them, what about the fruit tree root insect?

What about the worms in the roots of fruit trees?

Most of the root worms of fruit trees are knot nematodes, but 1.8% avermectin EC 1mL per square meter can be diluted 2000-3000 times before sprinkling the soil. It can also be used in the periphery of fruit tree projection, digging a 20cm deep hole every 30cm, and then mixing 2 kg "Yarn Emperor" granules with fine sand at the ratio of 1 ∶ 20 per mu. Application can be combined with fruit tree fertilization, mix the mixed medicinal soil and fertilizer, hole application, ditch application, radial application.

Second, what are the symptoms of nematodes in the roots of fruit trees?

Nodular swelling of the root is the main symptom of the disease. Root-knot nematode mainly harms fine roots, branch roots and fibrous roots of fruit trees, parasitic between root bark and stele, causing root tissue to overgrow and form root nodules of different sizes, showing milky white at first, then turning dark brown, and making root hairs sparse. In severe cases, the old nodules rot and the roots die. There are also some nematodes that can harm the stems, leaves, flowers and fruits of fruit trees.

1. Branches: the short branches are weak, and when they are serious, the branches wither.

2. Leaves: the leaves are yellow and dull, and the leaf edge is tornado, showing a lack of water, and it also shows that the leaves show diseases such as element deficiency, flowers and leaves, and finally, the leaves dry and fall off.

3. Flower organ and fruit: more flowering, less fruit, low fruit setting rate and small fruit.

Third, how does knot nematode spread?

Knot nematodes spread widely and were common in the provinces north of the Yangtze River, especially in alkaline soils. In the garden, it usually happens sporadically, occasionally in pieces. Mainly through Rain Water or soil transmission, through wound infection.