Annual white grubs (WG) are early-season pests attacking corn seeds and seedlings

Palmer amaranth (Amaranthus palmeri), a member of the "pigweed" family, is one of the most troublesome weeds in many southern row crops. Seed can germinate all season and plants can grow to over 6 feet in height. Plants have either male flowers that shed pollen or female flowers that can produce up to 600,000 seed per plant. One Palmer amaranth per 30 foot of row can reduce cotton yield by 6 to 12%.

Liquid nitrogen fertilizers have typically been surface applied. This method of application places the fertilizer where the urea nitrogen component of the solution is susceptible to volatilization losses.

Specialty cut flowers are one of the most profitable field crops you can grow. Lynn Byczynski, editor of Growing For Market newsletter (see Resources section), estimates a value of $25,000 to $35,000 per acre for field-grown cuts. The most basic requirements are at least half an acre of open, arable land, a rototiller, and, of course, time and effort. This publication is directed to those new to market gardening, but commercial vegetable growers, tobacco farmers, and young people interested in summer income are all potential candidates. Even grain and livestock farmers have increased profitability in their operations by adding cut flower production. For many greenhouse and nursery operations, mid-summer business is slower, relative to spring. A field-grown cut flower business is a viable option to fill in the summer production and cash flow gap.

In the competitive global peanut market, you need to lower production costs. At the same time, you also need to keep pesticide residues in peanuts to a minimum; protect rivers, streams, and lakes from runoff; and prevent chemicals from leaching through the soil to groundwater. Using IPM to protect crops only from pests that are likely to cause economic losses is a good way to meet these goals.

The southern corn rootworm (SCR) has long been considered a major pest of peanuts in North Carolina and Virginia. However, researchers and Extension faculty at Virginia Tech and NC State have determined through more than 400 commercial field trials that the majority of peanut fields do not need to be treated. They have developed and tested a simple-to-use advisory that identifies those fields not at risk for pod damage or economic loss. The Southern Corn Rootworm Advisory can save you time and money as well as help you use insecticides more efficiently.

Corn earworm, Helicoverpa zea, is the most common and destructive insect pest of soybeans grown in Virginia. Although infestation severity varies, about one-third of our acreage is treated annually. This costs farmers 1.5 to 2 million dollars annually, and requires the application of many pounds of insecticide to crop lands. We may never eliminate this pest from Virginia soybeans, but knowledge of the biology and use of best management practices can help limit insecticide controls to those fields that meet economic threshold criteria. This publication provides current information on corn earworm biology, prediction of outbreaks, pest advisories, scouting procedures, and recently revised economic thresholds.

Most Virginia soils are acidic and require lime applications at three- to five-year intervals. Maintaining the correct soil pH has several benefits, such as encouraging healthy root development and making sure nutrients in the soil are available to the plant. For example, low pH can cause aluminum toxicity and can decrease phosphorus availability.

The demonstration and research plot results discussed in this publication are a cooperative effort by six Virginia Cooperative Extension agents, extension specialists from Virginia Tech, and an assistant professor at the Virginia State University School of Agriculture. We are proud to present this year’s on farm small grain plot work to you. We hope the information in this publication will help farmers produce a profitable crop in 2015.

Because hops are long-lived perennials, controlling weeds near plants without causing injury can be challenging. Furthermore, empty spaces between rows can quickly become filled with weeds if left unmanaged. Growers therefore need a year-round weed management plan. An important part of that plan is identifying the common weeds at the site and understanding their life cycles. Once weeds have been identified, a management plan can be developed using cultural, chemical, or integrated approaches.

The research and demonstration plots discussed in this publication are a cooperative effort by nine Virginia Cooperative Extension employees, a faculty member at Virginia State University, numerous producers, and many members of the agribusiness community. The field work and printing of this publication are mainly supported by the Virginia Corn Check-Off Fund through the Virginia Corn Board. Anyone who would like a copy should contact their local extension agent, who can request a copy from the Essex County Extension office.

These demonstration and research plot results are a collaborative effort of Virginia Cooperative Extension (VCE) Agents and Specialists, area producers, and agribusiness. The purpose of this publication is to provide research-based information to aid in the decision-making process for soybean producers in Virginia. It provides an unbiased evaluation of varieties, management practices, and new technologies through on-farm replicated research using producer equipment and time. These experiments enable producers to make better management decisions based on research and provide greater opportunities to improve yields and profits, which improves quality of life for them and their families.

Proper soil fertility management ensures sufficient nutrients for maximum cotton production. Obtaining and maintaining appropriate soil nutrient concentrations is imperative, as fertilizer inputs are the largest component of production budgets for Virginia cotton farmers. At the same time, excessive nutrient application wastes money, wastes natural resources, and can negatively impact yields and environmental quality.

The 2014 grain sorghum OVT tests contained 52 hybrids; 41 hybrids were planted as a full season crop and 21 as double crop. Full season and double cropping tests were conducted at three locations, at the Tidewater Agricultural Research and Extension Center (TAREC) in Suffolk, VA, in a farmer field near Windsor, VA, in Isle of Wight County, and at the Virginia State University’s Randolph Farm near Petersburg, VA.

Tree fruits are important to the agricultural economy in Virginia. The commonwealth ranks sixth in the nation in apple production, with a crop valued at more than $68 million, and 20th in peach production, with a crop valued at $4.5 million. Although smaller in acreage, cherries, pears, and plums also play an important role in some areas of Virginia. These fruit crops are susceptible to an everchanging array of insects, plant diseases, and weeds, and pest management programs are complex and knowledge-intensive.

Recommendations for the use of agricultural chemicals are included in this publication as a convenience to the reader. The use of brand names and any mention or listing of commercial products or services in this publication does not imply endorsement by Virginia Tech nor discrimination against similar products or services not mentioned. Individuals who use agricultural chemicals are responsible for ensuring that the intended use complies with current regulations and conforms to the product label. Be sure to obtain information about usage regulations and examine a current product label before applying any chemical.

The purpose of this publication is to provide performance data of the many soybean varieties offered for sale in Virginia. These data should be of benefit to producers and agribusinesses in making selections of varieties for their use. It is realized that not all varieties that are offered for sale in Virginia are included in these tests. There is no implication that varieties not included are inferior in any way, but only that they have not been tested.

The primary considerations when selecting peanut varieties are yield, grade factors, disease, pests, and drought and heat response. A good practice is recording for each field the variety, yield, rainfall, and disease and insect incidence every year. This will allow producers to identify the most productive and less problematic fields, also the most productive varieties for each field.

Due to suitability to the environmental conditions and existence of a strong peanut industry tailored to process primarily the large-seeded Virginia-type peanut, growers in Virginia, North Carolina, and South Carolina generally grow Virginia-type cultivars. In the view of a common interest in the Virginia-type peanut, the three states are working together through a multi-state project, the Peanut Variety Quality Evaluation (PVQE), to evaluate advanced breeding lines and commercial cultivars throughout their production regions.

Along with agronomic and grade information, data on kernel and pod quality are essential for release of new peanut cultivars to ensure acceptability by the entire peanut trade. The present report contains the quality data collected on 4 Virginia-type cultivars that currently are on the market and 21 advanced breeding lines tested in the Peanut Variety and Quality Evaluation (PVQE) small plots in 2016.

Remove the soybean plant at ground level to make it easier to stage. Examine each main stem node one at a time to determine the development stage. Focus on the top four nodes that contain fully developed leaves (shown below). A fully developed leaf is one that is located immediately below a node containing a leaf with unrolled or unfolded leaflets (leaflet edges are no longer touching). The soybean crop is considered to be at a particular stage when 50% of the plants reach that stage. Listed with stage description for R1 through R6 are the approximate number of days to R7, or physiological maturity, for full season (FS) soybean planted in May and double crop (DC) soybean planted in June/July.

New varieties and strains of particular varieties of vegetables are constantly being developed throughout the world. Since it is impossible to list and describe all of them, only some of the better performing commercial types are listed in the specific crop section, either alphabetically or in order of relative maturity from early to late. These varieties are believed to be suitable for commercial production under most conditions.

Numerous kinds of insects can be found in soybeans. Most are beneficial or harmless, but some can cause yield loss and even crop failure if not controlled.

In the Commonwealth of Virginia, water resources are increasingly being scrutinized due to changing surface water or groundwater availability. Access to good quality water is a continuing concern, and in many communities, managing water use — particularly consumptive use — is a priority to conserve public water supplies to meet the needs of a growing population.

Double cropping is simply growing and harvesting two crops in one year. In the mid-Atlantic region of the United States, soybeans are commonly double-cropped after a winter small-grain crop, usually wheat. However, double cropping is not limited to the small-grain-soybean system. Other crops, such as grain sorghum or even corn, could fit into a double-cropping system with small grains. Soybean can be grown after other winter crops, such as canola, or after a spring crop, such as snap beans. As long as both crops can complete their development in time to allow profitable production of the entire system, numerous double-cropping systems are possible.

Lint yield and fiber quality of commercially available cotton varieties and experimental lines of Bollgard II XtendFlex tested in 2014 in Suffolk, VA.

The general purpose of a cover crop is to improve the soil, the broader environment, or other crops in rotation, not for direct harvest. Cover crops, depending on which are selected, are capable of providing many diverse assets. This publication provides a short description of these main benefits.

Cover crops increase soil organic matter, reduce erosion, suppress weeds, forage for nutrients, and reduce fertilizer costs (Clark, 2007). Cover crop species vary greatly and provide varied benefits. Performance evaluation of cover crop species and mixtures is needed in Virginia.

Delaware, Pennsylvania, Maryland, Virginia, and West Virginia, and Virginia, the five states in the Mid-Atlantic region, all require Certified Nutrient Management Plans to be completed for certain agricultural programs.

Early summer often means locally heavy and sporadic rainfall as thunderstorms deliver intense rains, and 2015 appears to be no different with many areas in eastern Virginia receiving 3+ inches of rain in a few days (Figure 1). These storms also often coincide with the timing of sidedress nitrogen (N) and sulfur (S) applications on corn. While some rainfall after sidedress is very beneficial to facilitate N movement into soil, heavy rain (2+ inches) often leaves us wondering how much, if any, of that recently-applied N remains and if additional N is needed.

The mature and dried stem, leaves, and chaff remaining after barley and wheat are harvested is known as straw. Many farmers around Virginia harvest straw by baling in small bales, large round bales, or large square bales that range in weight from 40 to 1,000 lbs. plus per bale.

Soil is the foundation upon which our natural living world depends; it is otherwise known as the dynamic material that civilization is built on (Lindbo, Kozlowski, and Robinson 2012). Soil serves diverse functions that are critical to the survival of humanity; without the soil, life on earth is inconceivable. It represents the critical zone of the earth where life, water, minerals, and air intersect and interact (fig. 1) because the soil constantly relates with other parts of nature. The soil is considered a living, dynamic resource at the earth’s surface and has been defined as “the unconsolidated mineral or organic material on the immediate surface of the earth that serves as a natural medium for the growth of land plants” (SSSA 2015). The thickness or depth of this surface or layer varies with the type and environment of the soil.

Proper management of the soybean crop requires knowledge of how environmental conditions and pests affect growth during vegetative and reproductive stages. For example, too little or too much soil moisture at certain stages may hinder growth and lower yield, and insect pests may damage the crop at one stage but not another. The information below can help you determine the proper timing of various management practices.

Many of the corn fields on the Eastern Shore and in Eastern Virginia are “yellow” and stunted due to the weather this Spring (Figs. 1 and 2) and is similar to conditions that Virginia farmers experienced in Spring 2010. There are many reasons for the corn to be yellow that range from nutrient deficiencies to abiotic factors.

There has recently been increased interest in the use of crop residues for different industrial uses in the US and the world. Corn residue is frequently cited as the most likely candidate for alternate industrial uses because of the large area of production and the relatively large amount of residue produced per acre. Among the potential alternate uses for corn stover, biofuel production has received the greatest attention.

Variable-rate applications (VRA) of nitrogen (N) fertilizers are a new option to assist producers with real-time fertilizer rate decisions. Two commercially available systems that allow variable-rate nitrogen applications are GreenSeeker (Trimble Navigation Limited; www. ntechindustries.com/greenseeker-home.html) and the OptRx Crop Sensor (Ag Leader Technology; www. agleader.com/products/directcommand/optrx/). A discussion of the science behind these systems, potential economic benefits, and other methodologies to make VRA is discussed in Virginia Cooperative Extension publication 442-505, “Precision Farming Tools: Variable- Rate Application” (Grisso et al. 2011).

Phosphorus is a naturally occurring element that is one of 16 elements essential for plant growth and animal health. Research has documented that applying phosphorus in fertilizers or manure increases crop growth and yield on soils that are below critical agronomic levels, as measured during routine soil testing. Although the economic benefits of phosphorus fertilization on crop production are well-documented, too much of a good thing can be detrimental to the environment. Excessive soil phosphorus is a potential threat to water quality.

Wireworms are the subterranean larval stage of click beetles. These insects can remain in the soil for several years attacking potato seed pieces or tubers or seeds and roots of other crops that are planted in the field.

This booklet contains arthropod pest management research conducted on vegetable crops in eastern Virginia in 2016. Research was conducted at several locations in Virginia including: 1) the Virginia Tech Eastern Shore Agricultural Research and Extension Center (AREC) near Painter, VA.

Container-grown plants are constrained with regard to root growth, and are affected by factors including container size, substrate, weather, nutrition, and irrigation. Typical soilless substrates will hold less plant-available water than a typical field soil, making water management a critical component of any container-grown plant production system. A well-designed and managed irrigation system, which works in concert with the aforementioned factors, can provide the necessary quantity of water to support plant growth in an efficient manner.

Blackberries (Rubus spp.) are of interest among strawberry and vegetable growers in Virginia looking to diversify their crops. Including blackberries in farm plans could allow these growers to keep their farms and pick-your-own activities open to customers for a longer duration, increasing agritourism and sales; however, Virginia growers lack information on blackberry varieties that perform well in the state.

The 2015 grain sorghum OVT tests contained 21 hybrids planted as a full season crop and 22 as double crop. Full season tests were conducted at three locations, the Tidewater Agricultural Research and Extension Center (TAREC) in Suffolk, VA, the Eastern Virginia Agricultural Research and Extension Center (EVAREC) in Warsaw, VA, and in a farmer field near Windsor, VA, in Isle of Wight County. The double crop sorghum trials were conducted at three locations, the TAREC, in a farmer field near Windsor, VA, in Isle of Wight County, and in a farmer field near Locust Grove, VA, in Orange County.