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温室花卉上常发生介壳虫为害,其中最为严重的要数褐软介。可为害米兰、佛手、龟背竹、吊兰、鹅掌柴等多种草木本花卉,其群集于叶面枝梢吸取汁液,同时排出大量粘液,诱致煤污病,严重影响花卉生长及观赏。该虫4-5代/年,在温室中可常年发生。成虫:卵形或长卵形,扁平或稍隆起,长3-4毫米,宽2.8-3.4毫米,黄褐至褐色。若虫小,淡黄色,较软。防治:①人工擦除:虫量少时,用软擦布或火柴杆轻轻擦除剔去。②喷洒3%柴油乳剂,10天后检查,虫壳边缘翘起,一触即落,说明虫已死掉。③埋药:按盆口内径15厘米用药2-3克,每增加5厘米增药2克计,将3%呋喃丹颗粒剂埋于盆土中,之后一切管理正常。此法可保证在
Greenhouse flowers often scale insects damage, of which the most serious number of brown soft medium. Can damage Milan, Bergamot, Monstera, Chlorophytum, Schefflera and other herbaceous flowers, the cluster of foliar shoots to absorb juice, while the discharge of a large number of mucus, causing coal pollution, seriously affecting the growth and ornamental flowers. The worm 4-5 generations / year, perennial in the greenhouse. Adult: ovate or long-ovate, flattened or slightly raised, 3-4 mm long, 2.8-3.4 mm wide, yellowish brown to brown. Nymphs small, light yellow, softer. Control: ① artificial erase: insects, when using a soft cloth or matchstick gently wipe tick off. ② spray 3% diesel emulsion, 10 days after the inspection, insects shell edge tilt, touch off, indicating that the insects have died. ③ buried drugs: according to the diameter of the basin 15 cm medication 2-3 grams, add 5 cm for each increase of 2 grams, the 3% carbofuran granule buried in basin soil, after all the management of normal. This method can be guaranteed at