Diseases 1 canker disease
.Symptoms can occur almost every part of both leaves, branches, and as a result, the symptom of leaves and fruits will have similar characteristics is wound round. How to enlarge Fu noon like a sponge. A light yellow to dark yellow.And be broken flaky. There is a ring yellow around the wound. The symptoms that branches are wound dressing, embossed, yellow, later the wound will crack dry brown extend around. Branch shape Tom wound uncertainty, and not a ring around it.To show the early symptoms worsen. Dwarf leaf fall. Yield, branch and stem will die eventually
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.Defense of the trim part is destroyed. No species of Tree Canker Disease, mother Try not to make the lemon injury and protection arthropod vectors, such as leaf miner or injection พ่นด้วย chemical insecticide carbaryl group
2 black mold disease symptoms, leaves, branches, and the result will be a black mold, dirty hardness makes me pretty early มะนาวจะ dwarf
.Protection to destroy the disease by fire or use. Insecticide spraying for pest control type sucking mouth which cause disease black mold
3. โรคกรีน still (glass)
.Symptoms, the leaves are spotted a yellow or white between leaf veins. Leaves are smaller. Finally leaves and shoots are dry. The effect is small, the minimum weight Early will worsen
.Defense of the destruction of the disease by burning fire, fertilizer, zinc and magnesium chim adjust the pH of the soil to be between 6.0-6.5
4. Diseases Yang flow
.Symptoms, signs, rubber flow service เวญ stem and branches Shell rot and the wound will spread to the wood
.Protection Should pruning weed to sunlight and thoroughly. And should apply the wound with copper or sulfur mixed with lime. If outbreaks can burn them
5. Root rot and stem rot
.Symptoms, rootlets and root branch rot is brown or black, sticky, no Yu shell of the stem to split out the stem and there are flow at the edge of the wound. When the roots and stem were destroyed. To make the yellow and fall
.Defense of the don't make a stagnant water. The stem and should not compost. Manure too much during the rainy season
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