G07-1523 Low Toxic Cockroach Control

This NebGuide describes how to identify common cockroach species, what they need to survive, and effective, low-toxic alternatives to traditional chemical control options

G08-1844 Stormwater Management: Pesticide Use in the Lawn and Garden

This 2008 NebGuide explains how the proper use and application of lawn and garden pesticides can prevent potential water contamination from stormwater runoff

EC00-2540 Field Records for Restricted Use Pesticide Applications and Integrated Crop Management by Private Applicators

Private applicators must record their restricted use pesticide (RUP) applications, as required by the Food, Agriculture, Conservation and Trade (FACT) Act of 1990. The USDA Agricultural Marketing Service administers this activity. In Nebraska, RUP application records must be maintained for three years from the date of application. The certified pesticide applicator should retain these RUP records, but must be able to make them accessible for copying by authorized representatives. This booklet is a suggested guide for preliminary or final RUP application records

Field Worker Exposure to Selected Insecticides Applied to Com Via Center-Pivot Irrigation

Field workerswere monitored for dermal and respiratory exposure to chlorpyrifos (with and without crop oil), carbaryl, and permethrin at reentry intervals of 2, 4, 8, 24, and 48 h after application. Insecticides were applied to R3 stage corn through an overhead center-pivot irrigation system. Dermal exposure was measured by analyzing 18 gauze pads attached to the clothing of workers to represent human body regions. Hand exposure was determined using cotton gloves. Respiratory exposure was determined using portable air samplers equipped with polyurethane foam plugs to trap ambient insecticide residues. Gas liquid chromatography was used to quantify residues of chlorpyrifos and permethrin in gauze pads, gloves, and foam plugs. Carbaryl residues in pads, gloves, and foam plugs were analyzed using high-performance liquid chromatography. Highest dermal and respiratory exposures were found at the 2-h reentry interval. Exposures decreased as reentry interval increased. Dermal exposure was primarily confined to the hands. Residues detected by air samplers ranged from 0 to 0.03 μg/liter. Based on the estimated percentages of acute toxic dose (all \u3c0.00038%), the risk of acute toxicity to workers at the intervals studied was low

Did Photosymbiont Bleaching Lead to the Demise of Planktic Foraminifer Morozovella at the Early Eocene Climatic Optimum?

The symbiont-bearing mixed-layer planktic foraminiferal genera Morozovella and Acarinina were among the most important calcifiers of early Paleogene tropical–subtropical oceans. A marked and permanent switch in the abundance of these genera is known to have occurred at low-latitude sites at the beginning of the Early Eocene Climatic Optimum(EECO), such that the relative abundance of Morozovella permanently and significantly decreased along with a progressive reduction in the number of species; concomitantly, the genus Acarinina almost doubled its abundance and diversified. Here we examine planktic foraminiferal assemblages and stable isotope compositions of their tests at Ocean Drilling Program Site 1051 (northwest Atlantic) to detail the timing of this biotic event, to document its details at the species level, and to test a potential cause: the loss of photosymbionts (bleaching). We also provide stable isotope measurements of bulk carbonate to refine the stratigraphy at Site 1051 and to determine when changes in Morozovella species composition and their test size occurred. We demonstrate that the switch in Morozovella and Acarinina abundance occurred rapidly and in coincidence with a negative carbon isotope excursion known as the J event (~53 Ma), which marks the start of the EECO.We provide evidence of photosymbiont loss after the J event from a size-restricted δ13C analysis. However, such inferred bleaching was transitory and also occurred in the acarininids. The geologically rapid switch in planktic foraminiferal genera during the early Eocene was a major evolutionary change within marine biota, but loss of photosymbionts was not the primary causal mechanism

G03-1523 Low Toxic Cockroach Control

This NebGuide describes how to identify common cockroach species, what they need to survive, and effective, low-toxic alternatives to traditional chemical control options. Some people see a cockroach and immediately grab a can of bug spray, but a quick spray from an aerosol can won\u27t provide long-term control. Ingredients in most aerosol and bomb treatments repel cockroaches. Using these products can cause the cockroaches to hide deeper inside walls and be more difficult to control later. To make the most of your efforts to control cockroaches, use a multiple tactic approach. First, you need to understand a little about the cockroaches that live in our homes, what they need to survive and how to eliminate them

G85-758 Protective Clothing and Equipment for Pesticide Appliactors (Revised September 2002)

Pesticides are valuable pest management tools, and like any tool, they must be used carefully and responsibly. Minimizing exposure is an important first step toward reducing your risk of pesticide poisoning. The use of personal protective equipment (PPE) provides benefits to the applicator and is a visual expression of appropriate and legal pesticide use.\ Use all pesticides safely. Read the pesticide product label and comply with all directions. Failure to do so may not only subject you to state and/or federal penalties, but it also may place you, your family, and the environment at a greater risk of pesticide exposure

G93-1150 Rinsing Pesticide Containers

It is estimated that every year one million plastic agricultural pesticide containers are used in Nebraska. Effective rinsing of these containers saves money, protects the environment and meets federal and state regulations on pesticide use. Proper rinsing of pesticide containers is easy to do, saves money and helps protect people and the environment. It also helps prevent potential problems with unrinsed containers and storage of the rinse solution (rinsate). Even during a busy season, the few extra minutes it takes to properly rinse empty pesticide containers is time well spent

G94-1219 Worker Protection Standard for Agricultural Pesticides (Revised May 1997)

This NebGuide describes the Worker Protection Standard, helps you determine if you are covered or exempt from it, and provides information on how to comply. The U. S. Environmental Protection Agency (EPA) issued the Worker Protection Standard (WPS) to protect employees on farms and in forests, nurseries, and greenhouses from exposure to agricultural pesticides (general or restricted use). The standard covers workers in areas treated with pesticides and employees who handle pesticides in the production of agricultural plants or commodities. It requires employers to protect two types of agricultural employees: agricultural workers and pesticide handlers (see definitions). The standard is considered to be part of the pesticide label and is enforceable when a WPS-labeled pesticide is used to produce an agricultural plant or commodity