The Purdue University Plant and Pest Diagnostic Laboratory (PPDL) specializes in the identification of plant diseases, insects, and plants, as well as in the diagnosis of plant-health-related problems. The PPDL is a partner in the National Plant Diagnostic Network (http://www.npdn.org), a national consortium of diagnostic laboratories dedicated to enhancing the work of diagnostic labs through[Read More…]
Tom Creswell
The Purdue University Plant and Pest Diagnostic Laboratory (PPDL) specializes in the identification of plant diseases, insects and plants, as well as in the diagnosis of plant-health related problems. The PPDL is a partner in the national Plant Diagnostic Network (http://www.npdn.org), a national consortium of diagnostic laboratories dedicated to enhancing the work of diagnostic labs[Read More…]
Earlier this summer, sunken lesions were observed on garlic scapes on a small farm in east central Indiana. Lesions started out a cream or tan color (Figure 1), however under rainy or humid conditions, spore production caused lesions to turn orange (Figure 2). Larger lesions resulted in the collapse of the scapes. It is estimated[Read More…]
Thinking of sending samples of your vegetables to the Plant and Pest Diagnostic Lab for diagnosis or insect ID? Here are some tips to help the samples arrive in the best possible condition for testing. Fill out a sample submission form. Download at: https://ag.purdue.edu/btny/ppdl/Pages/physicalspecimens.aspx If sending more than one kind of plant or problem be[Read More…]
Thinking of sending samples of your vegetables to the Plant and Pest Diagnostic Lab for diagnosis or insect ID? Here are some tips to help the samples arrive in the best possible condition for testing. Fill out a sample submission form. Download at: https://ag.purdue.edu/btny/ppdl/Pages/physicalspecimens.aspx If sending more than one kind of plant or problem be[Read More…]