Zhengzhou safflower Ziwei, Rose crape myrtle, Lagerstroemia price red rocket, star Huanong Lin Xinghua owned Central China's largest forestry seedlings base 5700 acres Q Q && 2636659231 && URL: http: //www.hnxhnlst.com Address: Zhengzhou City Ying Yang Komura speed 2 km south of the mouth of Sophora japonica seedlings M4-5 100 acres of boxwood H40-60 300 acres crabapple D2-3 500 acres Hongye Li D2-5 700 acres Fatong M3-8 500 acres leaves Tau D3-4 200 acres of cherry D2-6 500 acres of rose red crape myrtle D1cm 300 acres of sun Lee D 2-3 200 acres Prumus D2-3 400 acres of peach seedlings D2-3 100 acres of hibiscus D3-4 300 acres Luan Luan tree M2-6 600 acres 500 acres of tree seedlings biennial seedlings Photinia ball H60cm crown 80cm 100 acres of Acer palmatum H80 100 acres of gold leaf weeping elm wood M4-5 100 acres of silk D3-4 100 acres negundo M3-4 100 acres Peel willow Salix M3-5 M3-5 100 acres M3-5 100 acres 100 acres of willow Varia Myrtle Lagerstroemia D2-4 100 acres of forested acres D1 200 Euonymus ball crown 80-100cm 160 acres of boxwood ball crown 80-100cm 80 acres of lobular privet ball crown 80-120cm 300 D2-3 300 acres of green acres of flowering plum plum plum pearl D2-3 100 acres D0.5-1 100 acres of gold leaf elm M5-8 100 acres toon M3-4 200 acres of Ligustrum H60-603-5 300 branches H60 300 acres of green maple seedlings acres "Myrtle" Common Pests Myrtle Lagerstroemia powdery mildew is a common disease on the local area suffer heavier. Symptoms: Lagerstroemia powdery mildew on the leaves of young shoots and buds. Spring and summer shoots, leaves after feeling sick twisted, overlying layer of white powder. Can be susceptible, circular lesions on the leaves, the leaves of the overlying white powder after launch. Severe also be connected into one. Diseased leaves off in advance, the impact of development. After infested flower, white powder coating layer profiles, spikes deformity, appreciation of the value of missing to indecent. Pathogens: bacteria Uncinula the South, is a nuclear Hymenomycetes, Erysiphales. Students on both sides of the leaf. Infection ways: Lagerstroemia powdery mildew fungus mycelium on sick deformed winter, spores occur next year, spread by wind and rain, the risk of infection. Disease generally occurs in the month began, January tends to be severe or mild curb hot weather during the month, the month can be ill again. The lower branches sprouted susceptible to re venue clammy, hot, poor ventilation and light when ill. Combat style: Gardening Prevention: Lagerstroemia initiation strong, sink into a tree to cut off all the branches of Health yore, to quit sick leaves, sick shoot in the winter, you can reduce infection. Family potted crape myrtle should be timely removal of diseased leaves and flower placed in air and light place. Chemical control: can be sprayed, Zineb wettable powder thiophanate-methyl times, or triadimefon times, or Bordeaux mixture, starting in mid-March, every day 1 spray, spray 3-4 times total. Myrtle sooty blotch symptoms: primary damage leaves and branches. On the blade front and branches, petioles, covered with a layer of black coal powder substance, affecting photosynthesis. Pulverized coal was sometimes heavy rain washed flake or missing. Pathogen: imperfect fungi belonging cotina coal soot fungus mycelium dark brown, beaded, Po V in the foliage. Conidia varied shapes, Aeromonas, twin or brick lattice. Pycnidia erected rod sticks, light brown, unicellular, long microns 2-3 microns wide. Pycnidia there are nearly spherical micron in diameter. Infection ways: pathogen mycelium in diseased leaves, branches and other disease on winter. After a referral by Myrtle and Myrtle velvet long Infested large amount of its nutritional mucus oozing out, induced a large number of bacteria breeding sooty.