Hostas are ornamental garden plants that can fall victim to a number of pests, infections and diseases, and holes in the plant's leaves are most commonly the result of insect infestation, including slugs and snails. Because slugs are nocturnal, gardeners who find holes in their hostas' leaves may not have any other evidence that slugs are to blame since these insects tend to hide during the day. However, holes are a good indication that insects are to blame as other pests, such as rabbits and deer, tend to focus on the plant's shoots or simply strip leaves bare, and diseases tend to result in brown patches or white cottony patches.Know More
While insect damage is typically the most reasonable explanation for hole-shaped damage in hosta leaves, there are alternate explanations. Specifically, hail damage can also explain round holes in hosta leaves. This possibility can be easily eliminated from consideration, though, if the gardener knows for sure that no hail or other precipitation has fallen in their area since the holes in the plant's leaves appeared.
Diagnosing insects as the problem may take some trial and error. Although slugs are nocturnal, their slime trails can dry and be visible during the day, so looking for these trails is a good way to identify their presence.Learn more about Outdoor Plants & Flowers
Curled or rolled leaves on a tomato plant can be a sign of physiological problems, herbicide damage or viral infections, according to the University of Clemson Cooperative Extension. The possible physiological reasons include transplant shock, change in temperature at night, drought, severe pruning and root damage.Full Answer >
Hosta leaves can turn yellow from frost, sunburn, heat stress and disease. Like people, trees and plants are not immune to disease, injury and harm from the elements. Hosta plants are no exception, and like many plants and trees that sport foliage, they express physical harm and stress through the condition of their leaves.Full Answer >
There are a number of pests, including caterpillars, worms, moths and earwigs, that eat apricot leaves. Looking at the damage done to the leaf indicates what kind of insect is eating the leaves, according to SFGate.Full Answer >
Plant a white hosta in rich, well-draining soil with the right mix of sun and shade. Water it well, feed it with fertilizer and protect it from pests that can cause damage, such as slugs.Full Answer >