| 摘要 |
<p>The invention is directed to a hatching agent for hatching the species and patho types of nematodes causing potato sickness, which nematodes comprise Globodera rostochiensis and Globodera pallida, from the cysts thereof, with a molecular weight of 498, a composition C27H30O9 and the structure of formula (a) and derivatives, esters and salts thereof.</p> |
