籽粒苋病虫害调查与综合防治

通过对江西种植的籽粒苋病虫害调查表明，苗期害虫主要有小地老虎，蝼蛄，叶部主要害虫有甜菜白带野螟短额负蝗、中华稻蝗茎部主要害虫有筛豆龟蝽以及花，穗主要害虫有小长蝽，短肩针缘蝽，并提出通过清理种植地及周围环境、及时刈割籽粒苋等管理措施控制、预防为主。

A Survey on Diseases and Insects in Grain Amaranth and Control Measures

A survey on diseases and insects in Grain amaranth planted in Jiangxi Province showed, that the main pests in seeding stage are Agrotus ypsilon Rottemburg, Cryllotalpa orientalis Yang, the main insects on leaf are Hymenia recurvalis Fabricius, Atractomorpha sinensis Boliver, Oxya chinensis (Thunberg), on stem are Megacopa cribriaia (Fabricius), on flower and tassel are Nysius ericae (Schilling) and Cletus pugnator Fabrias. The preventive measures are clearing the planting place and its environment, harvesting in time. In controlling the pest, the policy of putting prevention first with supplement of low virulence pesticide should be carried out. A few diseases in Grain amaranth occur in Jiangxi Province, but they are not serious. The major diseases are Erwinia sp. and Phthium debaryanum Hesse caused by rainy weather and damp air, Pellicularia rolfsii (Socc.)West and Diplodia amaranthi Teng caused by fertilizer deficiency together with impoverished and dry soil and Pseudomona caused by applying undecayed organic fertilizer. The emphasis in controlling these diseases should be put on controlling the pathogeny. Strengthening the irrigation and fertilizing administration, applying decayed organic fertilizer etc, are the major measures.