It Starts With SPIT

摘要

Farmers stymied by soybean cyst nematode (SCN) that ravages once bulletproof SCN-resistant soybean varieties can look to one seemingly simple yet complex reason. It's spit.This isn't the chewing tobacco-tarred spittle that some baseball players spew; it is secretions produced by newly hatched SCN. SCN injects its spit into a soybean root cell wall though a mouth spear called a stylet.