园地开垦时清除野生杂草及灌木。粉蚧食性很广,许多野草及小灌木如岗松、肖梵天花,铁苋菜,算盘子、扛板归、山芝麻等都是该虫的野生寄主,开垦园地时必须把这些杂草及小灌木集中烧毁,以消灭虫源。开垦后,每个定植穴结合施基肥施生石灰100g,可减少粉蚧传播,又能降低红壤的酸度,适宜菠萝的生长。 对引进的外地种苗,剥除老叶并砍去最基部的老头,定植时用含50％敌敌畏800倍液或50％马拉硫磷乳剂800倍液灌心,避免出现因种苗带虫的中 Wild weeds and shrubs cleared during field reclamation. Mealybugs diet is very broad, many weeds and small shrubs such as Gangsong, Sham Smallpox, iron amaranth, abacus, carry plate, mountain sesame and so are the wild host of the insects, reclamation of the land must be weeds and small Shrubs concentrated burned to eliminate the source of insects. After reclamation, each planting hole combined with base fertilizer Shi lime 100g, can reduce the spread of mealybugs, but also reduce the acidity of red soil, suitable for pineapple growth. On the introduction of foreign seedlings, stripped of the old leaves and cut off the most basic old man, planting with 50% of dichlorvos 800 times or 50% malathion 800 times the irrigation center, to avoid the emergence of seedlings with insects In the