When pathogenic fungi are found growing on the roots of grape vines, grape farmers sometimes respond by covering the ground around their vines with plastic sheeting and pumping a gaseous fungicide into the soil. The most important concern of grape farmers who engage in this practice should be that the:
A. fungicide might also kill the native yeasts residing on the surfaces of the grapes.
B. lichens growing n the vines’ branches are not harmed.
C. fungicide might also kill mycorrhizae.
D. sheeting is transparent so that photosynthesis can continue.
Answer:C
When pathogenic fungi are found growing on the roots of grape vines, grape farmers sometimes respond by covering the ground around their vines with plastic sheeting and pumping a gaseous fungicide into the soil. The most important concern of grape farmers who engage in this practice should be that the:
A. fungicide might also kill the native yeasts residing on the surfaces of the grapes. B. lichens growing n the vines’ branches are not harmed. C. fungicide might also kill mycorrhizae. D. sheeting is transparent so that photosynthesis can continue.