How to understand that the strawberry nematode
The nematode inhabits the axils of the leaves and buds of bushes of strawberries in one vegetation period on the plant gives way to 8 generations of worms. The strawberries can dwell in several types of nematodes: the most dangerous are the leaf Bud, and root-knot nematode. They are transmitted with planting material, seeds, berries, plant remains. The danger of nematodes is that they weaken the plants, affecting their buds, inflorescences and roots, whereby the plant becomes a dwarf, its productivity is reduced.
Nematodes of the modified plants: the leaf blade shallow, ugly, wrong shape. Leaves curl, marinade, covered with brown or yellow spots. Another sign of infection of plants by nematodes, the change in appearance of the shoots, and often they shorten, thicken, they are a fusion between them. The flower stalks are shrinking, are often underdeveloped, take an irregular shape, the berries grow small or not provided at all.
The prevention of infection of plants by nematodes
The increase in the number of nematodes accounted for the spring and summer, continues until the end of July, after which there is a temporary decline in activity of the worms. There are a few basic rules that will avoid contamination of garden nematodes:
For this you need to observe crop rotation, but not to plant strawberries after potatoes, peas, beets and garlic – all of them are easily affected by these pests.
On the land where grown diseased plants, not plant strawberries and strawberries for two years so the nematode remains in the soil.
Do not buy strawberry seedlings from random sellers on the market. It is better to purchase it in specialized nurseries.
If the plot showed patients with nematode plant, you should immediately dig up and burn it outside a garden plot.
There are some chemicals to combat nematodes is designed to combat the worms ("Piperazine", sold in the drugstore), but they can give only temporary effect, to reduce the number of parasites. After the eggs come out new worms, the process will continue.
You can use the method of heat treatment. For this you need to dig up the plant, rinse the roots from the remnants of soil and immersed together with the leaves in a bowl of hot water (50-55oC with). To sustain plants in this state it is necessary for 10-15 minutes. This method is quite effective when planting seedlings in the garden to prevent the spread of the disease.
Gives good results planting in the garden with strawberries seedlings of marigolds, calendula and marigold. This method is used to reduce the number of nematodes. At the same time you can spray infusions of these plants, strawberry bushes for 2 weeks daily.
To get rid of nematodes is not so easy, it is much easier to prevent contamination.