Insect Diseases

PoGV occlusion bodies

Just as people are affected by disease-causing microbes like viruses and bacteria, so are insects infected by their own host of diseases. Some disease organisms are very specific to certain insect species, while others are able to infect and kill a wide range of insects. Most of the pests that damage potatoes are susceptible to one or more fatal diseases that occur in the environment and can become established in potato fields.
[All photos and graphics thanks to Dr. Lerry Lacey.]

PTM Granulovirus (POGV)

PoGV occlusion bodies

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PoGV Infection Process

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Infected fat body stains red

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Gross pathology - PoGV infected larva top

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Small Scale Production of PTW Granulovirus

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Disease Dispersal


Hanging posture and fragile integument of virus-infected larvae aid in the dissemination of the occlusion bodies into the environment. Some viruses induce climbing.

Fungal Infections

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Example of a colorado potato beetle infected with the fungus, Beauveria bassiana.

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Example of green peach aphid infected with the fungus, Lecanicillium lecanii.

Consortium Members and Partners


Insects, Diseases, Nematodes, & Beneficial Organisms

Find out more information about insects, diseases, nematodes, and beneficial organisms for Potatoes.

About The Northwest Potato Research Consortium

In February 2012 the state potato commissions in Washington, Idaho, and Oregon officially launched a new cooperative effort in research. The aim of this initiative is to increase cooperation and efficiency of the research programs funded by the three potato commissions that total about $1.5 million annually. It will also work toward comprehensive research results reporting process that aims to get useful information to the growers and industry members who need it. This website is a big part of that effort. Research results, integrated pest management guidance, and production information of many kinds will be presented here. For feedback or suggestions on this site, please contact Andy Jensen, Manager of the Consortium.

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Research Library

A useful and resourceful research library available with a wealth of knowledge and insight into potato data from in field experience.

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