Brown Marmorated Stink Bug
The brown marmorated stink bug (BMSB) is an invasive pest that causes millions of dollars in damage per year to agricultural crops. Identification of this insect may be difficult as both the adults and nymphs look very similar to other insects found in the gardens. Care must be taken to ensure a proper identification.
Insect Identification
Images
Brown Marmorated Stink Bug Eggs and Nymphs
Adult Brown Marmorated Stink Bug
Damage
Damage done by the BMSB can be difficult to detect in the early stage. However, if left alone, the damage will become more widespread. This damage includes spotted, wilted and damaged leaves, and plant death in severe cases. Regular checks of plants and fruit will allow you to catch problems before they become more widespread.
Affected Plants
The brown marmorated stink bugs (BMSB) feed on a wide variety of plants including but not limited to
- Nightshades
- Tomatoes
- Eggplant
- Brassicas
- Broccoli
- Cabbage
- Cauliflower
- Cucurbits
- Cucumbers
- Summer squash
- Pumpkins
- Watermelon
- Peppers
- Beans
- Corn
Management
Control techniques are listed in order of effectiveness.
Row covers
- If possible, completely cover affected plants early in the season and keep covered as long as bugs remain a threat.
Physical removal
- Regularly check the underside of the leaves for both adults and the eggs. Crush them all with your fingers. For the adults, dropping them in soapy water will prevent the smell that comes from crushing them
Insecticides
- Insecticides are ineffective against the brown marmorated stink bug because they are highly resistant. Insecticides should only be used against eggs and nymphs.