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The appearance of dead foliage clusters scattered throughout the canopy of oak trees is very noticeable right now. Some of these twig-and-foliage shoots, called “flags”, are breaking away, littering the ground below. This is symptomatic of the oak twig girdler, Oncideres cingulata. Oaks are the most common trees to be afflicted with the oak twig... Continue Reading →
Midsummer is the season of solitary wasps. These wasps are called solitary because they do not build large colonies like paper wasps or yellow jackets. They are predators and prey on spiders, crickets, cicadas and other insects. Solitary wasps paralyze their prey and drag it to a burrow. They lay an egg on the paralyzed... Continue Reading →
Japanese beetle season is here! The first beetles of the season are beginning to feed and soon defoliated plants – in some cases entire trees - will appear. So, what’s the best strategy for managing them? Below are some tips to help minimize damage in your landscape. But first - realize that when Japanese beetles... Continue Reading →
Pest control depends to a great extent on how well you achieve thorough coverage of all plant parts - flowers, leaves, the undersides of leaves, and fruit. New label directions now give flexibility in the amount of water used to dilute pesticides. Using the highest amount of water you can often gives the best coverage. Spray plants until... Continue Reading →
Honey bees and other bee species, such as bumblebees, orchard mason bees, and leafcutter bees are very important pollinators of flower and crops. In the home garden and orchard, gardeners are aware how important bees are for fruit and vegetable production. But in recent years many gardeners have noticed declining bee numbers in their gardens... Continue Reading →
Cucumber beetles and squash bugs are two serious insect problems of the cucurbits – cucumber, summer squash, winter squash, pumpkin, watermelon and zucchini. They are both difficult to control, but new research gives an option to reduce their numbers using low-chemical control. The Culprits Cucumber beetles and squash bug adults both cause damage through their feeding.... Continue Reading →
This year the National Garden Bureau features Lantana as its annual flower of the year. In the 18th century, lantana was a popular greenhouse plant in Europe and breeding efforts were extensive, resulting in hundreds of available selections. The most commonly available species, Lantana camara, is a tender plant winter hardy to zone 8. Although lantana is not... Continue Reading →
Oystershell scale is a very secretive little insect that usually goes unnoticed. But despite it’s tiny size, this insect can cause significant damage in trees or shrubs. Some gardeners aren’t even aware the insects are present as they prune out dead branches the insects have killed. If you had branches die on a rose, dogwood or lilac... Continue Reading →
Garden professionals often talk about sanitation as a way to manage insect and disease problems in a garden or landscape. But what exactly is garden sanitation and how does it help with pest problems? Pest Overwintering Strategies Many disease organisms carry over from one season to the next on infected branches, leaves or fruits. Diseased... Continue Reading →
The brown marmorated stink bug is a nuisance as well as a destructive pest and, like its name implies, puts off a nasty odor when crushed. This nonnative invasive pest has been in Nebraska since 2012. The damage the BMSB causes is from its needle-like mouthpart that punctures, resulting in sunken bruised areas on fruits.... Continue Reading →
Every summer an unusual type of insect makes an appearance in many landscapes. Actually, there is a small group of insects, called twig girdlers or twig pruners, that cause similar damage in a variety of trees. But fortunately, these insects are not a serious problem and their activity doesn't have serious consequences for the trees. But... Continue Reading →
Japanese beetle season is here! Defoliated plants – in some cases entire trees - look horrible and no matter what you do they seem to keep coming. So, what’s the best strategy for managing them? Below are some tips to help minimize damage in your landscape. But first - realize that when Japanese beetles first come... Continue Reading →
