how to make a die cast mold How to Care for a Diseased Blue Spruce Tree

Punpunpungens, named for its sharpnessThe end needle is a kind of needle evergreen plant in the pine family, also known as Colorado spruce.The native of this Rocky Mountain area usually appears in the American landscape, containers, and rock gardens.S.Cold-resistant areas of the Ministry of Agriculture 4 to 7.Blue spruces are vulnerable to some diseases and pests, most often fungal infections and excessive insects.However, if kept healthy, the trees can live in 200, reaching a height of 70 feet on top of them.Check if there are yellow or red needles covered by black spots on the tree and cause fallen leaves.Trim the affected areas, disinfect the equipment with 70% alcohol and place all the materials in plastic garbage bags.Apply with a manual sprayer a disinfectant containing ethanol, and apply when the needle starts to grow and ends to grow.Wear safety equipment such as working gloves, goggles, masks and long glovesLong sleeve clothes when spraying.Look for signs of other fungal infections, such as bacterial ulcers.This disease affects branches and trunks, causing them to die in a pattern that begins at a low point in the branches.Trim off all affected branches, 4 to 6 inch below cankers, or, in some cases, keep trimming back to the trunk.Trim in dry weather to avoid fungal spread.Observe if the tree has rust, which is shown as orange spots on the leaves, and may cause the leaves to turn yellow or yellow.Chrysomyxa pirolata, a rust variety, only affects cones, causing them to lose seed vitality.Handle rust by trimming sick branches, clean up all the dropped needles around the bottom of the tree, and put them in plastic garbage bags for processing.Look for signs of insect infection.Spider Mites cause drops of yellow or red needles, while aphids cause worms.Treat both with pesticide soap.The Brown sparse needle indicates a white pine elephant nail infection that can be treated by trimming the damaged part.Identify pine needle scales on the tree, which will produce scabsLike formation.Fish scales can not only cause appearance problems, but also lose the nutrients of trees, which may attract mold due to the richness of honey dew.Treat scale with gardening oil during the dormant period.Pay attention to signs of bark beetle infection, which can cause great damage to all trees in the area.Beetles such as small branches, spruce and carved Beetle make a series of holes in branches and trunk.Once the population grows, trees cannot be preserved and must be removed to prevent pests from spreading to other trees.By getting professional help from the licensed pesticide applicator, treat the beetle problem as early as possible as the bark beetle pesticide is not available for home use.