Pill kills roaches

 作者:亢脏     |      日期:2019-02-27 02:07:01
A CONTRACEPTIVE pill for cockroaches that also kills the insects within days could soon go on sale in the US. Developed by Heather Wren and her colleagues at Virginia Polytechnic Institute and State University, Blacksburg, the “pill” is a mixture of xanthine—a chemical found in coffee and potatoes—and oxypurinol, an active compound in gout treatments. When the insects consume the chemicals,