摘要
在云南景谷芒果种植区，芒果炭疽病对芒果树嫩叶、嫩梢、花穗和果实为害率分别为８５．７％，６３．４％，７７．１％和７３．３％。风雨和昆虫媒介是传播的主要方式。发生为害最适温度为２２℃～２５℃，相对湿度为８５％～１００％。该病在景谷种植区全年均可发生为害，主要为害在发生期。发生前期为害，是花穗干瘪和幼果掉落的原因之一。采取综合防治措施，特别在发生前期适时防治，可控制发生为害。
COlletotrichum gloeosporioides Penz is one of the
main disease of mango trees,invading tender leaves,young tree-tops,spike and fruit.The ratio
of harm to them are85.7%,63.4%,77.1%and 73.3%,respectively.The spike withering and the
prematureJropping is caused by the harm in the fore-occurring stage. This kind of disease is
preva-Ient at any time in Jinggu County,Yunnan Province.The most favourable condition forthe
disease is high temperature and high humidity The spreading is mainly done by wind,rain and
insects. The most suitable temperature of occurring is 22C～25C and 85%～100%for
humidity;the unsuitable temperature is below l0 C or above 35C,while humid-ity below 80%.The
annual occurring of this disease in Jinggu County can be divided intofour stages:the lining
through winter stage,the fore-occurring stage,the ocurring andthe later occurring stages. The
primary harm happens in the occurring stage. Syntheticalprevention and cure for the disease
should be done,especially in the fore-occurring stage.
出处
《西南农业大学学报（自然科学版）》
CSCD
1996年第3期206-209,共4页
Journal of Southwest Agricultural University
关键词
芒果
炭疽病
发生规律
综合防治
angifera
indica
Collectotrichum gloeosporioides Penz
pests occurrencerule
integrated control
