8～9月,是无花果果实的旺采季节,也是无花果锈病的盛发时期,因而此时期是防病保叶壮果壮树的关键时期。锈病是无花果叶片的主要病害,由锈孢子侵染而引起。发病初期,在叶的背面出现许多针头状的小黄点。以后,病斑逐渐扩大,成为红褐色的多角形斑点。病 From August to September, it is the prosperous season for the fig fruit. It is also the flourishing period for fig rust. Rust disease is the main disease of fig leaves, caused by the infection of rust spores. Early onset, many needle-like small yellow dots appear on the back of the leaves. Later, the lesion gradually expanded to become red-brown polygons spots. disease