The disease was caused by the mixed infection of Fusarium solani and plant nematodes. 該病的發生是由於腐皮鐮刀菌與植物線蟲複合感染所致。
Chitinasesn by Paecilomyces lilacinus is a kind of enzyme, which has activity in biocontrol against Plant Parasitic Nematodes. 淡紫擬青黴幾丁質酶是一種對植物線蟲有生防活性的酶。