Cutworms can survive the winter either as partially- to fully-grown larvae or caterpillars in soil, under garbage or clumps. In the spring, they begin to feed and then continue growing until late summer. They enter the soil to become pupae (the nonfeeding stage where the larva changes to an adult form) 😉 They emerge as moths during the summer 🙈 The moths are grayish or brown “millers” that are attracted to lights in the spring and summer. Each female moth lays about 1,000 eggs On the ground, or on leaves in grassy and weedy areas. It is the eggs hatch The young larvae eat the roots and leaves of grasses and other weeds. Hibernate is the term used to describe the behavior of the larvae. They then attack any vegetation that remains the next spring. Larks are plump and soft-bodied, hairless caterpillars with varying colours and markings. All caterpillars have large appetites. 
Corn flea beetle may also transmit the bacterium that causes Stewart’s disease causes Stewart’s to wilt while it feeds. Sweet corn may have ears smaller than usual due to the disease. Infected plants could also die. Mild leaf blight can cause chaffy, lightweight ears in seed-producing fields. It may also increase the risk of stalk rot. Mild winters favourr the survival This may make it more likely that the disease will be transmitted to corn plants by this pest. Flea beetles will survive if the average daily temperatures in December, January and February are above 90. This would increase the likelihood of them spreading disease. Although the beetles can kill plants, they are not usually severe enough. Plants may be killed if they infest plants with another disease. If corn flea beetles infest seed production areas where there are many of these susceptible breeds, it is likely that treatment will be justified. 
Content.ces.ncsu.edu The author continues to explain how larvae migrate to plant parts as vegetables grow and produce fruits. Small larvae can be difficult to detect in tomatoes, or even in sweet corn ears. Small string-like scars can develop where tiny larvae enter tomatoes as they grow in size. The corn ear is where larval damage occurs. Small holes of approximately. Round holes (approx. 5mm in diameter) found through the shuck represent emergence, rather than entry holes. Corn earworms are large and can be found on tomato plants (okra, beans) and tomatoes. They may feed from one fruit to another and leave gaping holes at the surface. 
The following research was done by extension.umaine.edu It also identifies the three main insect pests that plague sweet corn in New England. They are European corn borer (also known as corn earworm), fall armyworm, and corn borer. All spend their adult life as moths, but the damaging stage of the insects are the larvae or caterpillars, commonly referred to as “worms,” which feed on the leaves, stalks and ears of the corn plants. Only the European corn borer, out of all three types, can overwinter most of New England. Moths carrying the corn earworm, and fall armyworm migrate from the south to New England in the summer. These strategies are called integrated pest management (IPM). It is designed to optimize effectiveness and efficiency while decreasing pesticides and increasing profit. Chalese Quintana, Guatemala City, Guatemala, for sharing this information.