When fully grown, a female gypsy moth has white wings featuring a dark wavy patterns, and and a wingspan of between 40mm and 70 mm. Male moths are grey or brown, and half the size.

An adult female gypsy moth. After mating, the female lays eggs in a single mass covered with hairs from the abdomen. Most egg masses are located on tree trunks. The winter is spent in the egg stage.

Male gypsy moths looking for a little companionship in the flimsy triangle-shaped boxes nailed to trees all over the Chicago area these days will be terribly disappointed. Inside, the moths will fi… ...

Gypsy moth caterpillars are wreaking havoc across upstate New York. Locals fear the threat of long-term damage to trees, but experts urge caution.

State workers are preparing to set nearly 18,000 gypsy moth traps across Minnesota this spring as part of an annual survey to slow the spread of the pest.

Photo submitted by Marcus McCartney A female gypsy moth lays eggs on a tree as seen here. The brown mass under her body are the eggs she’s laid. MARIETTA – Brought from Europe in the 1800s ...

If gypsy moth caterpillars have taken over oaks or other trees around your property, you're probably familiar with a "pitter-patter, almost rainfall-like sound," as Tawny Siminsky describes it ...

The second treatment is used in areas where many male moths are found, but no egg masses or caterpillars have been observed. In those cases, pheromone sprays that mimic the smell of female gypsy moths ...

• Female gypsy moths are white, they don’t fly and they die after they lay their eggs. Male moths are a tan-brown color and are the ones you see flying around.

One surviving female gypsy moth can lay an egg mass that will produce more than 500 caterpillars the next year, said Kimberly Thielen Cremers, the state’s Gypsy Moth Program Supervisor.