CDFA Pest Prevention Plant Regulation Practice Exam

Which plant series is commonly affected by the Colorado potato beetle?

1. Brassica

2. Solanaceae

3. Cucurbitaceae

4. Gramineae

The correct answer is: Solanaceae

The Colorado potato beetle primarily targets plants within the Solanaceae family, which includes crops such as potatoes, tomatoes, eggplants, and peppers. This beetle is notorious for its ability to cause significant damage to these plants by feeding on their leaves, leading to reduced yield and quality. In understanding this pest’s behavior and its impact on agriculture, it is essential to recognize that Solanaceae species not only serve as primary hosts for the Colorado potato beetle but also influence pest management strategies. Integrated pest management practices often focus on crop rotation, the utilization of resistant varieties, and the possible introduction of beneficial insects to mitigate the beetle's devastating effects. The other plant families listed do not share the same susceptibility to the Colorado potato beetle. Brassica includes crops like cabbages and broccoli, Cucurbitaceae encompasses cucumbers and squash, and Gramineae (now known as Poaceae) refers to grasses like wheat and corn, none of which are natural hosts for this particular pest. This specificity is crucial for effective pest management and targeted interventions in agricultural practices.