October 11, 2002
The "multicolored Asian lady beetle" (Harmonia axyridis), has become common throughout the U.S. and all of Iowa. It is well known for the annoying habit of accumulating on the sides of buildings and wandering indoors during the fall. Asian lady beetles are a beneficial biological control in trees during the summer, and in fields and gardens during the fall, but can be a severe household nuisance during late fall and winter. Wooded residential and industrial areas are especially prone to problems.
Winter is a difficult period for houseplants. Many plants don't receive sufficient light because of the short winter days, low angle of the sun, and often overcast weather. While houseplants differ in their lighting requirements, all would benefit from supplemental lighting during the winter months.
Light can be broken down into various wavelengths. Those wavelengths that are perceived as colors are in the visible spectrum. Plants make use of all visible light. Red and blue, however, are the most important for plant growth.