Q: Would it be beneficial to till my garden now while the temperatures are low in order to kill some of the bugs that winter over in the soil?
A: Winter tilling is once of the very best ways to organically control garden insects. Dress warmly and work the area over on a windy day when the soil is dry. Wind desiccates insect eggs and larvae. Exposing them to sunshine may make them hatch and die from cold. The sacrifice you make by tilling in the cold will be repaid in less insect control work to be done in summer.