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北疆果园,尤其是葡萄果园里,菟丝子对果树的危害相当严重。仅我们在石河子一四三团几个果园统计,受害果树达30—50％,每年由此造成的水果减产15—20％。由于连年危害,许多盛果期果树已经死亡。目前菟丝子的危害越来越严重,若不采取有效措施,将给果树生产造成毁灭性的威胁。 菟丝子,名黄缠,寄生草,属施花科,是一年生寄生性的恶性杂草。我们常见的有两种:一种危害大豆、苜蓿的叫中国菟丝子;一种是危害果树、榆树、白腊等的叫日本菟丝子。据我们这几年调查,果树菟丝子种子在地表
North Xinjiang orchards, especially grape orchards, dodder damage to fruit trees is very serious. Only we Shihezi four or three regiment orchard statistics, the damage of fruit trees up to 30-50%, resulting in an annual cut of 15-20% of the fruit. Due to years of damage, many fruit trees have been dead. At present, the damage of dodder is more and more serious. Without effective measures, it will cause devastating threat to the production of fruit trees. Dodder, named yellow wrapped, parasitic grass, is a flowering branch, is a annual parasitic malignant weeds. We have two kinds of common: a harm to soybeans, alfalfa called China dodder; one is harmful to fruit trees, elm, white wax, etc. called Japanese dodder. According to our investigation in recent years, fruit dodder seeds on the surface