凡有菠萝种植的地方,粉蚧萎蔫病Mealybug wilt就可能是主要病害。病害同菠萝灰粉蚧Dysmicoccus Nebrenipes Beardsley和菠萝红粉蚧D.brevipes Cockerell伴随发生,尽管病害确切的病因尚不清楚,但最近的一份报道指出,从萎蔫的菠萝植株中发现了病毒颗粒。很多国家防治此病害的效果极差。粉蚧萎蔫病一旦在菠萝上发生,防治困难。这是因为 Wherever pineapples grow, Mealybug wilt may be a major disease. Diseases are associated with Dysmicoccus Nebrenipes Beardsley and D. brevisipes Cockerell and although the exact etiology of the disease is not clear, a recent report found that virions were found in wilting pineapple plants. In many countries, the effect of this disease is very poor. Grouper wilt disease occurs once on the pineapple, prevention and treatment difficulties. This is because