Growth stages of corn are divided into vegetative stages (V) and reproductive stages (R) as outlined in Table 1. Subdivisions of the V stages are designated numerically as V1, V2, V3, etc. through V (n), where (n) represents the last leaf stage …

Arrival of adult moths from southern states varies each year. Corn at VT to R1 is most attractive to egg-laying females. Scout at R1 or when a significant moth flight is captured in pheromone traps. Larval feeding is most extensive in early through mid-July in most regions of the Corn Belt.

This site is designed to inform you of our research and recommendations for small grain and corn crops. You'll also find information about our program and links to good sources of information on crop management.

As the first double-stacked corn trait with two ways to help control ear-feeding insects, VT Double PRO® corn delivers a broad spectrum of protection against above-ground pests, including European corn borer, southwestern corn borer, fall armyworm and corn earworm.

Corn plants generally develop up to the V18 stage before reaching maximum height at tassel emergence (VT) and transitioning into the reproductive (R) stages of growth. Beginning at about V6, the lowest leaves may fall from the plant and dissection of the lower stalk may be necessary to accurately stage the plant.

2020年5月1日 · Staging begins at emergence (VE), and each new leaf with a fully developed leaf collar is called stage V (n). Vegetative leaf staging for corn plants ends when the corn develops a tassel (VT); once the plant has silks visible outside of the husks it has reached the first reproductive stage (R1).

2024年8月8日 · Corn is planted on approximately 500,000 acres in Virginia annually and generates over $350,000,000 in gross revenue. Both corn grain and silage are important sources of animal feed in the region.

2019年8月1日 · Throughout the growing season I will discuss the various corn growth stages and management issue at each stage. Tasseling and kernel fertilization are arguably two of the more critical stages. The VT stage occurs when the last branch of the tassel is completely visible, extended outward, and not held in by the upper leaves.

Use these interactive guides to see how a corn plant develops during the vegetative (VE – VT) and reproductive (R1 – R6) growth stages. This tool also provides scouting tips and identifies when common pests may cause injury to corn plants.

2020年9月16日 · Sweet corn varieties differ significantly in time to ma- turity and in quality; yellow, white, bi-color, standard, and extra-sweet varieties are available. Most varieties planted are hybrids which have been bred for greater vigor and higher yields.