True or False: Insect or mite galls can be chemically controlled after gall development.

The statement is false because once insect or mite galls have developed on a plant, they typically cannot be effectively controlled with chemical pesticides. Galls are abnormal growths caused by the host plant's response to the feeding or egg-laying activities of certain insects or mites. They create a protective environment for the pests, making it difficult for pesticides to penetrate and reach the pest. Additionally, at this stage, the pest may be fully protected within the gall, further reducing the likelihood of effective chemical control.

Control efforts are generally most effective when targeted at the juvenile stages of the pests before they induce gall formation. Recognizing the life cycle of these pests is crucial for timely and efficient management. Options suggesting specific times of the year for chemical control would not change the fundamental issue that once galls are established, chemical intervention is largely ineffective.