Posted by:Jessica Wong, Master Gardener Coordinator, Broomfield County Extension Spiders may be one of the most important and abundant biological control agents in our gardens.They are generalist predators that feed almost exclusively on arthropods, including many we consider pests.Spiders will kill as many as 50 times the number of prey they actually eat.And, relax, they are not at all

The Plants of Summer

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Posted by:Alison O'Connor, Larimer County Extension Co-workers and friends often joke about my landscape.By now you realize that I adore my lawn, but the landscape plants don't get much attention.My gardening philosophy is that you have to be tough to survive in my landscape.If you need a lot of attention, water or regular pruning, forget it.I've killed A LOT of plants in my tenure in
Tony Koski, Extension Turf Specialist Pre-emergent herbicide injury on a Kentucky bluegrasshome lawn.The herbicide was on a fertilizer carrier, thusthe darker appearance where a higher-than-recommendedrate was applied.Among the mostly widely used lawn weed control products, pre-emergent herbicides (aka “crabgrass preventers") are generally very safe to use on most turf species.Safe, that
By Irene Shonle, CSU Extension in Gilpin County Native plants are becoming more and more popular in landscaping, as people seek to reduce water use, increase habitat for pollinators, and create more of a sense of place.Unfortunately, there’s only a limited palette of plants in nurseries to choose from (hint, talk to your favorite nursery and ask them to carry more native species).  The ones

TIme for Rust

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Posted by Mary Small, Colorado Master Gardener Program Coordinator  Rust on clippers You’re probably familiar with rust – the kind like you see here on the grass clippers (right) that were left outside all winter!Plants get rust too, (although not for the same reason as the clippers) and it is appearing on landscape plants now.Here’s rust on my Zephirine Drouhin rose (below). I just

Lilac Ash Borer

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Lilac Ash Borer- Cassey Anderson CSU Extension Adams County Most of us are aware of the looming menace posed by Emerald Ash Borer to our ash trees along the Front Range in Colorado.However, we do have another pest of our ash trees, the lilac ash borer.Lilac ash borer can, like their name, impact both lilacs and ash trees.They are more of a concern in ash trees. Fortunately they are usually
By:Sherie Caffey, Horticulture Agent, CSU Extension-Pueblo County Western Yellowjacket Most people know that bees are good.There are, however, those who are still afraid of bees, and of course those who are afraid of wasps.Surprisingly, many don’t know the difference between the two.Bees are typically not aggressive whereas wasps are more likely to sting.We have many species of both
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