What degree of defoliation signifies a severe impact that puts immense stress on host trees?
Answer
70 percent or more of the canopy leaves are gone
When defoliation reaches severe levels, meaning 70 percent or more of the canopy leaves are gone, it puts immense stress on the host trees.
Related Questions
What is the formal, newly adopted common name for the spongy moth in North America?In what year and location was the spongy moth accidentally introduced to the United States?Which specific stage of the spongy moth life cycle is responsible for the devastating feeding damage?What feature gives the egg masses their characteristic name, leading to the common name 'spongy moth'?How are the spongy moth caterpillars typically identified by the markings on their backs?What is the primary natural dispersal method utilized by the young, newly hatched larvae?What is the key functional difference regarding flight between the adult male and female moths?What degree of defoliation signifies a severe impact that puts immense stress on host trees?Which type of tree species is highly preferred by the caterpillars, often bearing the brunt of feeding pressure?Besides natural dispersal, what human activity is highlighted as a major factor in long-distance jumps for egg masses?Once the spongy moths reach the adult stage, what is their singular purpose during their short lifespan?