of water irrigated for the plants. This disease can be reduced if plants are planted in the shade because the beet leaf hoppers and other insects like to feed on these plants in the sun. Pay attention to soil handling carefully before planting trees. Plant density should not be too thick, pruning and sweeping leaves to destroy. Avoid applying a lot of nitrogen fertilizer, it is necessary to increase the amount of micro-fertilizer such as using Poly Foliar fertilizer 19-19-19 to increase the tolerance of plants. In the first 20 days, when seedlings grow, attention should be paid to inspection and careful care because this is the stage to determine the rate of diseased plants. Selection of varieties: For the prevention of curly top disease in tomato plants, it is important to select varieties. One must select tomatoes with less viral infections and a high tolerance to pests. It is also important to buy from reputable local seed sources, so seedlings are adapted to local weather conditions. Note: choose healthy, non-deformed plants, with vigorous growth, white roots, well-developed tops, and good grafts (for grafted tomatoes). One example of a variety selected for resistance to Curly-Top is the 'Payette' tomato developed in Idaho Nurseries: For nurseries to be tall, well-ventilated, after each release, nurseries must be treated with nursery tools. Nursery material must be dried and decayed. Land for planting: For tomato-rotational growing gardens, the gardens need to be cleaned and destroyed in the garden. Stir carefully, apply lime as soon as you turn the soil, and dry 7-10 days before planting. Should choose the new bare land before planting legumes, sandy loam soil, basalt soil with a pH of 5.5 - 6.5 is best. By physical methods Use yellow sticky traps (20cm x 30cm, place staggered 3m / piece) to attracted beet leaf hopper. Using foil hanging from the treetops to create reflective light to repel the insect sting. Control There are no chemicals available for controlling the virus, but several cultural practices can help reduce or eliminate infections such as: Good sanitation practices, such as weed and insect control, are also essential in limiting the occurrence of the disease. Home gardeners may also consider planting susceptible hosts, such as tomatoes and peppers, in a slightly shaded part of the garden, as leafhoppers prefer to feed in sunny locations. If the garden is in full sun, it may be helpful