As you can guess from their name, cabbage worms primarily attack plants in the cabbage family, but are not exclusively cabbage feeders. Plants that cabbage worms find the most tasty are:
Since cabbage worms are such voracious eaters, as little as 2 or 3 worms on your plants can spell disaster for the overall health of your broccoli or other plant.
Common signs will be holes in your leaves. A simple google search can connect you to many pictures of cabbage worm damage.
A tell-tale sign that you are becoming infested with cabbage worms are their droppings. When you start to notice dark green droppings on your leaves, inspect the underside of your leaves as that is where cabbage worms tend to lay their eggs.
Since caterpillars are in essence the larvae stage of caterpillars, if you start to notice more butterflies hanging around your garden, chances are, you have an infestation of cabbage worms or if you experience one of the previous symptoms, it might be too late.
Spring and summer are the time of the year that cabbage worms have awaken from their Winter slumber and are now in search of food and laying their eggs.
If you have experienced this infestation in the past or for those proactive gardeners who are getting prepared for the already started 2012 gardening season, the most common and popular organic control for cabbage worms revolves around the use of bacillus thuringiensis or BT.
This natural bacteria eliminates cabbage worms through ingestion. One of the most popular BT products is Safer® Brand Caterpillar Killer with BTand is available in an 8 ounce concentrated formula or in Safer® Brand Garden Dust, which is a powder formula and is OMRI® Listed.
In the comments below, let me know if you have noticed cabbage worms in your garden
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