GMAT Critical Reasoning (CR) | Re: The tulu, a popular ornamental plant, does not reproduce

The tulu, a popular ornamental plant, does not reproduce naturally, and is only bred and sold by specialized horticultural companies. Unfortunately, the tulu is easily devastated by a contagious fungal rot. The govt ministry plans to reassure worried gardeners by requiring all tulu plants to be tested for fungal rot before being sold. However, infected plats less than 30 weeks old have generally not built enough fungal rot to be detected relaibly. And many tulu plants are sold before they are