When this mold covers the leaf surface, it blocks sunlight, which prevents photosynthesis and causes plant defoliation.
(this mold; covers; the leaf surface) (it; blocks; sunlight, which prevents photosynthesis and causes plant defoliation; T:When this mold covers the leaf surface) (sunlight; prevents; photosynthesis) (sunlight; causes; plant defoliation)
this mold it sunlight sunlight
covers blocks prevents causes
the leaf surface
sunlight, which prevents photosynthesis and causes plant defoliation T:When this mold covers the leaf surface
photosynthesis
plant defoliation