Newsletter Vol. 1, No. 1
1 January, 1997
http://www.ag.ohio-state.edu/~catnews

This & That

Water-sensitive paper is yellow and stained blue by exposure to spray droplets. These cards, which come in different sizes, can be extremely useful when demonstrating droplet sizes from different size and/or type of nozzles, droplet densities, spray distributions, spray widths, and penetration of spray into crop canopy. Cards can also be used to demonstrate drift of droplets. Here is what coverage looks like on cards with 200 and 400 micron droplets at different application rates. (1 micron = 1/25,000 in.).

VMD = 200 micron	VMD= 400 micron
2 gal/A 830 drops/in2	2 gal/A 103 drops/in2
4.3 gal/A 1665 drops/in2	4.3 gal/A 206 drops/in2

If you are interested in organizing a field day or a sprayer calibration clinic this spring, you should try to include a demonstration using these cards in your program. For example, you may want to demonstrate deposition patterns over and under sides of leaves from different nozzles.

To do that, you can attach several of these cards over and under sides of leaves (use double-stick tape), spray over this area, and let the audience see the difference in spray deposition. For airblast orchard sprayer demonstrations, you can staple water-sensitive cards directly onto leaves at the periphery and inside the canopy at the top, in the center, and lower parts of the trees and observe the droplet deposition patterns at different locations in the tree canopy, as shown in the Figure below.

Based on the experiences of many who have used water-sensitive cards at field demonstrations, they are always intriguing to the audience, and excellent to capture the attention of the audience.

Another useful and practical gadget is a simple flowmeter used for calibrating sprayers. Rather than collecting liquid from each nozzle for a predetermined time, this handy gadget can be used to check flow rate of nozzles in a short time. Spraying Systems calls this TeeJet Tip Tester.

Spraying Systems Co. carries these products and offers a 42 percent discount to orders coming from OSUE. Here is the information you need to order these products:

Address:
TeeJet Northeast
P.O. Box 397
124A West Harrisburg St.
Dillsburg, PA 17019
Phone: (717)432-7222
Fax: (717)432-7021

Audiovisuals available for PAT training!

Here is a list of audiovisuals you can use during Pesticide Applicator Training programs. A copy of each item was sent to each OSUE District office when these items were first introduced. If you have difficulty locating these items at your District office, please contact OSUE Section of Communications and Technology (C &T) to borrow or purchase a copy of these audiovisuals (Phone: 614/292-2011). These are all our products produced by us at OSUE.

Slide Sets(with scripts)

1. Boom sprayer calibration
2. Recent developments in application technology (with tape)
3. Applying pesticides efficiently
4. Reducing pesticide waste
5. Calibration of liquid chemical turfgrass application equipment
6. Rinsing pesticide containers
7. Reducing spray drift

Videotapes

1. Rebound of droplets from leaves
2. Boom Sprayer Calibration
3. Recycling Pesticide Containers

Videotapes on Orchard sprayers **

1. Apple orchard spraying: Getting results (Produced at Cornell University.)
2. Sprayers for fruit crops (Produced at Kansas State Univ.)

** Contact Erdal Ozkan to obtain these tapes

No-glug, No-splash, No-drip?

Have you heard complaints about pesticides splashing all over the place while emptying them into sprayer tanks? You probably have. The design of existing containers was inadequate to prevent this simple problem (see container 1). For greater safety in mixing pesticides, companies have introduced products that can be packaged in other forms to avoid problems associated with containers. Rhone-Poulenc has Gel-Packs; Ciba, DowElanco, Rohm & Haas and DuPont uses water-soluble packs. Monsanto recently introduced a new 2.5 gallon container that prevents accidental splashes during emptying of containers (see container 2). The no-glug, fast-pouring action is achieved with a large "air flow" handle that has a split inner opening to let air flow back into the container at the same rate the liquid empties. Several other companies have adopted this design and offer some of their products in these new jugs. One more thing: with this design, Monsanto also eliminated that pesky foil seal covering the container mouth. The new containers have a resealable cap instead of a foil seal. The resealable cap eliminates spills and leaks when the container is resealed.

Container 1	Container 2

Yes, you can go to jail for misusing pesticides!

This is old news, but worthy of mentioning again. A couple of years ago, U.S. Distr. Court Judge M. Davis sentenced Y.George Roggy of Fumicon, Inc. to FIVE years in prison for misusing a pesticide. Roggy was convicted of 12 felonies involving application of an unapproved pesticides to oats owned by General Mills. Judge indicated that the sentencing would have been much more severe if the pesticide used was one that could cause harm to people.

Disclaimer

Information presented above and where trade names are used, they are supplied with the understanding that no discrimination is intended and no endorsement by Ohio State University Extension is implied. Although every attempt is made to produce information that is complete, timely, and accurate, the pesticide user bears responsibility of consulting the pesticide label and adhering to those directions.

Return to CAT News Homepage

Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Keith L. Smith, Director, Ohio State University Extension.

All educational programs conducted by Ohio State University Extension are available to clientele on a nondiscriminatory basis without regard to race, color, creed, religion, sexual orientation, national origin, gender, age, disability or Vietnam-era veteran status.