家庭养花,一般都将盆花莳养在室外阳台上,或栽在庭院里。到了冬季,则需将盆花搬到室内,地栽的也上盆搬到室内。花株上常有害虫卵潜伏着,由于室内比较温暖,加上通风不良,经常发生蚜虫、红蜘蛛、粉虱等害虫为害。在室外时发现这些害虫,可喷乐果、敌敌畏杀除。而搬到室内喷这类农药,气味难闻而且毒性很重,这为冬季室内喷药杀虫造成一定困难。笔者经过几年的实践,采用盆土浅灌药液杀虫法可以大大减少室内的农药污染,而且杀虫效果很好。现介绍如下,供花友们参考。具体作法是;将乐果和敌敌畏混合液稀释30～50倍,向半干盆土内浇灌,以25cm口径的花盆为例,浇灌50ml即可。然后再向盆内浇水,药液通过根的吸收再通过茎的导管很快运输到叶片,使叶上的害虫在1～2天内全部死亡。此法不仅杀死叶片上的害虫,还可杀死土内的害虫。此种方法只适用盆栽,因为盆内根部分布集中,吸收效果 Family flowers, potted flowers are usually raised in the outdoor balcony, or planted in the courtyard. In winter, you need to move the potted plants to the interior and the planted pots to the interior. Insect pests eggs often lurk, due to indoor relatively warm, coupled with poor ventilation, often occurs aphids, spider mites, whiteflies and other pests damage. When found outdoors, these pests can be sprayed dimethoate, dichlorvos to kill. And moved to indoor spray these pesticides, the smell is unpleasant and heavy toxicity, which insects in winter indoor spray caused some difficulties. After several years of practice, the author uses potting soil shallow irrigation liquid insecticidal method can greatly reduce indoor pesticide contamination, and insecticidal effect is very good. Now introduced as follows, for reference. The specific practice is; dimethoate dimethoate mixture diluted 30 to 50 times, to the basin of semi-dry soil irrigation, 25cm diameter flower pot, for example, watering 50ml can be. And then watering the basin, the liquid through the roots of the absorption and then quickly transported to the leaves through the stem of the leaves, the leaves of the pests in 1 to 2 days all died. This method not only kill the pests on the leaves, but also kill the pests in the soil. This method is only applicable to potted plants, because the roots of pots are concentrated and absorbed