Frequently Asked Questions

Mark LeBlanc  |  8/17/2012 12:53:46 AM

Why use the Agricultural Chemistry Laboratory (Ag Chem)?

The LSU Ag Chem lab offers a variety of tests on a range of agricultural and nonagricultural products. The fees charged by Ag Chem are cheaper than the commercial laboratories on similar tests. Ag Chem is conveniently located on the LSU campus and has state-of-the-art equipment to perform these critical analyses.

What samples can I send to the lab for testing?

Updated Fee schedule for 2014-2015

Visit Ag Chem Forms and Fees section for types of samples that can be analyzed. Please do not hesitate the call the lab if your sample type is not listed.

If you need to test for plant analysis, nutrient deficiencies, soil toxicity or imbalance, or water samples for agricultural and aquacultural applications, then refer to the Soil Testing & Plant Analysis Lab.

If you need information about safe levels of toxins in hay, forage or feed, then contact Dr. Christine Navarre at the School of Animal Sciences.

How much sample do I need to send to the lab for testing?

For Aflatoxin

Fill the sample in a one-quart or one-gallon plastic zipper bag and seal it tightly. Keep the paperwork separate from the sample. This includes stapling the paperwork to the bag. Ensure that the samples are neatly packaged in the shipping container in order to avoid spilling and mixing of the samples.

Please DO NOT package samples in paper bags.

For Water

Fill 3/4 of a quart-size plastic or glass container with the sample and place the container in a plastic bag in order to avoid spillage. Keep the paperwork separate.

For Chicken Litter

Fill the sample in a quart-size plastic zipper bag and seal it tightly. Keep the paperwork separate from the sample.

For Feed 

Fill 3/4 of a quart-size plastic zipper bag with the sample and seal it tightly. Keep the paperwork separate from the sample.

For Dairy Lagoon

Fill 3/4 of a quart-size plastic or glass container with the sample and place the container in a plastic bag in order to avoid spillage. Keep the paperwork separate.

For Pesticide Residue Analysis

Depends on the matrix and the analyses requested. So please contact Amy Hernandez at 225-342-5812 ext 203.

For Meat

Please contact Chantilly Reddmann at 225-342-5812 ext 130 for questions about meat analysis.

What kind of pesticides can be analyzed?

The Ag Chem lab tests for many types of pesticides. The lists below include some of the most commonly tested pesticides, but additional testing is available.

Please do not hesitate to contact the lab if you do not find the pesticide you would like to get your sample analyzed for.

Organophosphates:

  • Acephate
  • Diazinon
  • Chlorpyrifos/ Dursban
  • Parathion
  • Phosmet
  • Malathion
  • Methyl Parathion

Chlorinated Hydrocarbons

  • Chlordane
  • DDT
  • Dieldrin
  • Hexachlorobenzene
  • Heptachlor
  • Lindane
  • Toxaphene
  • PCBs

Triazines

  • Atrazine
  • Simazine
  • Propazine
  • Prometone
  • Prometryne
  • Metribuzin/ Sencor
  • Hexazinone/ Velpar

Chlorophenoxy Herbicides

  • 2,4 D
  • Bentazon/ Basagran
  • Acifluorfen-sodium/ Blazer
  • Quinclorac/ Facet
  • Triclopyr/ Garlon
  • Dicamba
  • Picloram/ Tordon

Sulfonyl Ureas

  • Halosulfuron-methyl/ Permit
  • Metsulfuron-methyl/ Escort
  • Sulfometuron-methyl/ Oust

Imidazolinones

  • Imazethapyr/ Newpath
  • Imazapyr/ Arsenal
  • Imazaquin/ Scepter
  • Imazamox

Pyrethroids

  • Cypermethrin
  • Lamba-cyhalothrin/ Karate
  • Permethrin
  • Pyrethrin
  • Bifenthrin
  • Deltamethrin
  • Tetramethrin

Carbamates

  • Aldicarb/ Temik

Glyphosate/ Roundup

Others

  • Piperonyl Butoxide
  • Carbaryl/ Sevin
  • Metolachlor/ Dual
  • Alachlor/ Lasso
  • Bromacil/ Hyvar
  • Pendamethalin/ Prowl
  • Fipronil
  • Imidacloprid

Who do I contact for my sample test results?

Contact Joyce Lewis at 225-342-5812 ext 100.

What is your mailing address to send samples?

If the sample is going to be mailed through the postal service, use the following address:

Agricultural Chemistry Department
Room 102, Agricultural Chemistry Bldg.
110 LSU Union Square
Baton Rouge, LA 70803-0001

If the sample is going to be mailed through FedEx or UPS. use the following address:

LSU Department of Agricultural Chemistry
Room 102, Agricultural Chemistry Bldg.
LSU Highland Road
Baton Rouge, LA 70803-0001


What are your lab hours?

8.00 a.m. to 4.30 p.m. Mon.-Fri.

How do I pay for tests?

You can send a check along with the sample to be tested or pay after receiving an invoice from the lab. You can make checks payable to LAES/Agricultural Chemistry. PLEASE DO NOT SEND CASH.

How long does it take for the sample results to returned to a client?

Usually 7-14 days depending on the number and type of tests requested on the sample. Also during certain times of the year the regulatory sample load increases. Since the regulatory samples take precedence over research and public samples, the turnaround time can be more than 14 days.

What is the cost of analyzing samples for pesticides?

Please click on the image for the cost of analyzing samples for pesticides

Refer to the Pesticide Formulation and Pesticide Residue Category under the Forms and Fees section of the Ag Chem website or contact Amy Hernandez at 225-342-5812 ext 203.

What type of tests can be performed on water samples?

Please click on the image for tests can be performed on water samples

Refer to the Water Category under the Forms and Fees section for types of tests that can be performed on water samples.

Who do I contact for feed and pet food licensing and registration?

Contact Cheryl McGee at 225-342-5812 ext 106 or visit Feed Program for more information.

Who do I contact for fertilizer licensing and registration?

Contact Lauren Boydstun at 225-342-5812 ext 102 or visit Fertilizer Program for more information.

Who do I contact if I have questions about pesticide analysis?

 Contact Amy Hernandez at 225-342-5812 ext 203.

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