How can small localized infestations of drywood termites be controlled?

The method of controlling small localized infestations of drywood termites by injecting insecticides into holes drilled into the galleries is effective because it directly targets the pests within their nesting areas. This approach allows for a concentrated application of insecticide in places where the termites are actively feeding and residing, leading to a higher likelihood of eliminating them.

Drilling into the galleries ensures that the insecticide reaches the areas where termites are most vulnerable, disrupting their life cycle and reducing the population effectively. This method is particularly advantageous for localized infestations as it minimizes unnecessary exposure to chemicals in areas where there isn't an active pest problem and can be executed without the need for extensive structural treatments or major alterations to the environment.

Other methods, such as chemical fumigation, might be more suitable for larger infestations and more extensive treatment areas, while significantly increasing humidity would not be effective in eliminating drywood termites. Killing nearby trees does not address the specific infestation and could potentially create more issues by encouraging more pests. Thus, targeted insecticide injection represents an efficient and strategic solution for managing localized drywood termite problems.