Does the active ingredient carbaryl control pesty aphid populations?

No, the active ingredient carbaryl in pesticides does not control pesty aphid populations on cucurbits.

Specifically, the term cucurbits includes cantaloupe, cucumber, pumpkin, squash and watermelon. Carbaryl is ineffective when these edible plants are overrun by aphids. Instead, an effective choice is permethrin, which requires a three-day wait between last application and harvest.