Shandong Hengda Ginkgo ginkgo seedlings base 3.5.2 Early yellows. The disease mainly by inadequate soil moisture or soil insect hazards, water or land, zinc and other causes, and after the onset of early leaf blight susceptible. Multi-onset period occurs in mid-June, early July, an increase in yellow. Prevention and treatment to identify the cause, attention arid irrigation, water humidity; zinc fertilizer should be applied as zinc, zinc sulfate and zinc or effect. 3.5.3 ultra-small ginkgo leaf roller. Before adult emergence peak with 2.5% deltamethrin 2500 times the control. Early larvae hatch with 80% dichlorvos EC 800 times spraying killed sticks. Sprayed with a mist trunk, prevention has bore into the bark of larvae. Agents with white-painted trunks, prevent adult emergence. Shandong Hengda ginkgo seedlings base four budding in stock north of Greenwood smoothing vital force transverse knife, depth of the xylem, and then cross the line in the center to cut back drooping, depth of the xylem, about 1.2 cm long, cut "T" white fruit, then with the tip scheduled to open buying and selling cortex ginkgo trees to prepare for grafting. Choose robust cuttings, scissor middle ear have substantial segment axillary buds, cut petiole, 0.4 cm above the bud at a vital cross white fruit knife latest relevant information depth of the xylem, about 1 cm long, 1.2 cm from the bud at cut up wood, cut to cross the vital opening date, vital to wider at the shield Bud. Bud will be cut and slowly insert the rootstock "D" shaped incision inside, so that the upper edge of the upper edge of bud cortex and cross the vital port abutting the cortex. With a film strip from the bottom up with a batten style banding method, the bud and rootstock to cut layers of banding tight, taut film strip marked the final knot, so as not to loose. Fifth, about 15 days after grafting management such as bright green buds already survived if it does not survive should dry up connection. Scion bud to be fully healed, the buds begin to grow activities carried unbundling, the first solution Greenwood then tied. After bud exposed, and re-banding is good, so as not to break the wind and cause failure. Rootstock bud removed promptly and strengthen fertilizer, water management and pest control. Grafting seedling root suckers, transplanting the following spring to the lifter, the lifter to the whole root planing, with a sharp knife close to the mother plant is cut at the roots of tillers, the normal management after transplanting. White fruit Specifications | White fruit | by Shandong Hengda Hengda ginkgo ginkgo seedlings base. White fruit Specifications | White fruit | Shandong Hengda Hengda Ginkgo ginkgo seedlings base (www.sdhdyx.com) this year introduced a new upgrade, the above picture is for reference only, please call Tel picture on this page or to obtain the latest Information, Contact: Zhuo (Zhuo) Changping.