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由木硬孔菌(Rigidoporus Lign—osus)引起的白根病是印尼橡胶树的一种主要病害。白根病造成的损失是导致树株减少因而降低橡胶产量。此病由根系接触染病的根系残屑通过根状菌索而蔓延,或通过风传孢子在新砍开的树桩表面拓殖而传播。在印尼,白根病广泛蔓延可能有几种原因:树株或树桩毒法的手工清除老胶树的开垦法在土中留下病根的残屑,它为新种的幼树提供了侵染源;不适当的敞开根头和施用杀菌剂的防治方法,以及财政问题而忽视根病处理的趋势这些都是促进白根病爆发和蔓延的原因;现代胶园是第三代或第四代胶树,有许多严重的根病问题,进一步加重了这些因素。本文记述印尼橡胶树白根病的现状,讨论施用硫磺的效果,估量硫磺防治白根病的机制。
Rhizoctonia solani caused by Rigidoporus Lign-osus is a major disease of the Indonesian rubber tree. The loss caused by white root disease results in a reduction of the tree strain thus reducing the rubber yield. This disease is caused by the root system contacting the diseased root debris that spreads through the rhizomatous fungus or spread by colonizing newly stumped stumps by wind-borne spores. In Indonesia, there are several possible causes for the widespread use of white root disease: tree-clearing or stump poison removal by hand The removal of old gum trees leaves debris from diseased roots in the soil and provides a source of infection for new species of saplings ; Improper open roots and the application of fungicide control methods, as well as the financial problems and ignore the root cause of disease trends are the root causes of the root cause of the outbreak and spread of root cause; modern plastic garden is the third or fourth generation of plastic trees There are many serious root problems, further aggravating these factors. This article describes the current status of Rhizobium in Indonesia rubber tree, discussing the effect of applying sulfur, and evaluating the mechanism of sulfur in preventing white root disease.