- Recommend "Weeds of the West" or "Weeds of California and Other Western States" to initially search and identify common weeds.
- A UA entomologist managing the UA Insect Collection currently identifies insect specimens and provides diagnostic aid. Contact and correspond with the UA Insect Collection for instructions.
- If turfgrass diseases are suspected, there are university laboratories throughout the U.S. that can diagnose most commonly occurring diseases. See list.
- If you suspect nematodes in turf, please contact a university laboratory as listed above for diseases.
Other plant nutrition, soil, and water testing available at commercial laboratories in Arizona. Contact Info