Morphology yellow GE tree yellow GE tree height 15-20m. Root plate extending up to ten meters, prop roots form of dry transplanting seedlings, bust of 3-5m. Leaves alternate; petiole 2.5-5cm; stipules aster seedlings wide oval, acute, long 5-10cm; leaf blade papery saplings, oblong or nearly lanceolate, long 8-16cm, width 4-7cm, apex shortly acuminate, base obtuse or round opening, entire, basal veins 3, lateral veins 7-10 pairs, reticulate veins slightly obvious. It has strong vitality, Deep rod strong, flourish, grow fast, long life, endure high temperature, moisture resistance, anti-pollution. Summer is not the best season for pruning, pruning at this time, seedlings are very vulnerable to pests and hazards disseminated decomposers in the soil and thatch, including microorganisms, including pathogens. Within this system, the emergence of lawn we want to see the lesions on the subjective, it must be pathogenic its rapid propagation conditions have fit. For example in terms of too much nitrogen turfgrass accepted a small number of irrigation, lawn grow fast, tender and juicy lawn vegetative tissue rose saplings, germs into the lawn organization easier, bacteria breeding has also been good nutrition packages reproductive rate rose sharply, causing the entire turf system dominated system toward the direction of the change of bacteria to evolve. To control lawn diseases occur fundamentally, we must create conditions conducive to robust growth of turfgrass site conditions: balanced fertilization; see dry see wet ground irrigation; growing season turfgrass regularly sparse grass, the grass layer thickness can be kept in an appropriate range; lawn of age to a certain extent, sparse grass roots cut each year to promote root newborn; reduce invading pathogens, which does not give bacteria breeding opportunities, the evolution of this system has been by turfgrass Freshmen alternately dominant dynamic evolution. Rose seedlings, saplings Yubei, Hua Hin seedling bases provided by the Chongqing Hua Hin green seedlings base. Chongqing Hua Hin green seedlings base (www.cqxhlh.com) strong, credible, in Bishan County of flowers, fruit seed industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chinois nursery stock base and you hand in hand into the brilliant, for a better future!