They had lots of questions for Master Gardeners who staff the telephones. There s little to be done once there is an infestation of borers. Chemical control is rarely helpful and only effective if applied directly at adults as they lay eggs, which requires continual monitoring for the emergence of the borers. Systemic insecticides don t work.
Prevention is the best method.
I want to plant a fern garden. Though Sacramento temperatures are not as mild as ferns prefer, they can thrive if cared for properly. Ferns need to be protected from hot, direct sunlight, so they do well in shaded areas and under overhangs. They need indirect light to retain their color. They like high humidity and, during the summer, the fronds need frequent moistening.