Plant Tissue

Plant tissues can be tested for reasons not directly related to food safety or regulatory compliance. There are many types of plant tissues that fall outside the definition of agricultural commodities. Leaves, grasses, ornamental plants and weeds could require testing in some circumstances. Agricultural commodities may require testing prior to harvest if crops are showing signs of stress or damage.

Some of the situations where residue testing may be necessary could include:

• Damage from spray drift or soil carryover
• Overapplication/misapplication of pesticides
• Vandalism
• Efficacy or decline studies

In addition to compounds contained in the comprehensive profile, the following classes of herbicides are also available.

• Glyphosate/Glufosinate
• Chlorinated herbicides
• Imidazolinone herbicides
• Sulfonylurea herbicies
• Diquat/Paraquat
• Phenoxy Acid Herbicide.pdf


Hemp Profile

With rising industrial hemp production across the United States, the need for comprehensive testing for prohibited pesticide residues is crucial. While there are no approved pesticides for use on hemp, comprehensive residue screening provides critical information over state-specific lists regarding the use and presence of prohibited pesticides in raw materials and manufactured products.

• PAL comprehensive pesticide residue screening covers over 200 compounds in hemp tissue and products.
• Incorporates the guidance contained in USDA documents NOP 2611 (Laboratory Selection Criteria).
• Post-harvest residue testing for growers and handlers to support R&D and quality assurance.
• Hemp Profile.pdf