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wholesale manufacturers stainless steel jewelry Eucalyptus's main diseases and insect pests are: blue blight, scorched blight (commonly known as fallen illness), eucalyptus stem rot, eucalyptus moth, termites, and golden turtles.
(1) Blood blight
Eucalyptus blue blight bacteria invade the young trees in the forest, and the performance of the above ground can be divided into two types. The first is an acute type, the leaves of the diseased plant are drifted quickly, and the leaves are suspended on the branches without falling off, showing a typical "green" symptoms. The second type is chronic type, dysplasia, short, and lower leaves of the diseased plants become purple -red first, and then gradually deepened and developed upward. Finally, the leaves are dry and falling off.
If prevention and treatment measures:
In selection of disease -resistant products;
Make the quarantine of the seedlings to avoid illness as much as possible; Forest land (planting peanuts, tobacco, potato, tomato, mulberry, kapok, wooden ephedra, and beauty banana to create eucalyptus forests;
do not apply unsolved organic fertilizer; Improve the ability of forest wood resistance. There is no exact and effective prevention method after the disease. Once found, it can only be removed immediately. The soil soil can be disinfected and the diseased plant can be destroyed.
(2) Coccus (commonly known as deciduous disease)
This is the disease caused by high temperature and high humidity conditions, which can make eucalyptus withered branches falling leaves, which can be killed in severe cases, especially eucalyptus and its tail eucalyptus and its it. The non -sexual system is prone to disease in places with low temperature and rainy weather for more than six or seven consecutive days, some low -lying, poor drainage, large afforestation density, and poor permeability in the forest.
Cope prevention measures:
C selection of well -drained land for afforestation, low -lying land should do a good job of drainage ditch, the planting density should be appropriate, not too dense.
(3) Eucalyptus stem rot
is a kind of eucalyptus seedling disease. When the disease is onset, the stems of the seedlings rot and gradually die.
The prevention and control measures:
This or before seedlings or seedlings are used to spray seedlings after using the concentration of water or Bordeaux liquid before gardening.
(4) Eucalyptus small rolling moths (vulgar leaf worms)
August -August each year to harm eucalyptus and young leaves, damage the tender shoots and top buds, but can Creating small trees and affecting growth.
Prevention measures:
If artificial pinch. Seeing the young trees and tender leaves, the larvae in the curls are pinched by hand; Use the enemy's 600 times liquid plus a small amount of kerosene or a lot of pistachios or a chrysanthemum lipid (according to the concentration).
(five) termites
mainly harmed the skin of the eucalyptus tree, which seriously affects the growth of forest trees.
Prevention measures:
Use cane, sugar, etc. Buried into the soil, and seduce termites to concentrate with pesticides to poison;
The drugs are driven. The effects of green stalemium produced by the Academy of Forestry in Guangdong Province are very effective. The usage is to mix the green stalemium according to the instructions of the use of the medicinal solution, immerse the woodcut seedlings in the medicinal solution, and then pick up the forestry to make the termites effectively control;
Swift the soil around the young trees, can be used to kill the termite. The Fu Dan can be placed alone, or it can be applied with other base fertilizers.
(6) Golden tortoise
larvae (commonly known as chicken tapeworm) to harm the roots of young trees, especially some cooked afforestation larvae such as sugar cane land and sweet potato fields, which are more harmful to harm. Essence Adults are the leaves of young trees.
Prevention measures:
During the afforestation, a 4-5 cities per mu with enemies (or Ting Ding 膦 2.5 pounds) evenly sprinkle the acupoint to drive the turtle seed larvae;
Diluted with pesticide enemies and methamine phosphorus to 600-800 times liquid to spray on the leaf surface, which can effectively poison the adults.