
One common horticultural pest our office receives questions on is bagworms. Bagworms feed on the foliage of a wide variety of trees and shrubs, but are of most concern for evergreens, especially junipers. Bagworms overwinter as eggs in their bags which are attached to tree branches. The eggs hatch in mid-May to early June. As bagworms grow, leaf fragments are added to bags which often grow to 2 inches in length by the end of the summer. The earliest signs of bagworm injury in evergreens are brown or stressed needles at the tips of branches. Heavy infestations of older bagworms may completely defoliate a tree or shrub and if severe enough can kill the tree or shrub. Less severe injury will slow growth and stunt plants.

To control bagworms on small trees or small infestations, remove the bags by pulling them off the branches and immersing them in soapy water. If you place the bags next to the tree, the larvae might return to the host plants. If you have bagworms in a windbreak or large tree, insecticides are most effective when applied during early bagworm development. For early season damage, insecticides from mid to late June when bags are less than ½ inch in length are effective. By late August, chemical control is no longer effective as the bagworms have ceased feeding and are enclosed within their bags.
Reduced-risk insecticides to use contain Bacillus thuringiensis (Bt) and insecticidal soaps are quite effective on young bagworm larvae but may require repeated applications. Additional insecticide options for bagworms include: acephate, bifenthrin, carbaryl, cyfluthrin, malathion or others. As always, be sure to read and follow all label instructions and use all insecticides with caution to avoid exposure to humans, pets, wildlife and other non-target organisms.
For more information, check out Nebraska Extension’s NebGuide on bagworms which can be accessed online through extension.unl.edu websiteor in our office.


Nebraska 4-H currently reaches one in three youth through 4-H programming. Considering the amazing benefits youth experience through participation in 4-H programming, Nebraska 4-H anticipates reaching one in two youth by the year 2020. In order to achieve this goal, leadership of Nebraska 4-H asked counties to establish growth goals for their local 4-H programs beginning in 2014. These growth goals were meant to encourage and challenge 4-H programs to think of creative and innovative ways to engage more youth in 4-H programming. While reaching one in two youth may initially seem overly ambitious, fifty four counties currently reach one in two youth through their 4-H programs. This is due, in large part, to the great work of our 4-H alumni and volunteers. Fortunately, Fillmore and Clay Counties have already achieved this goal and are working to expand even more through diverse audiences.

Trees are very valuable in our landscapes. They provide us with beauty, shade, oxygen, and better resale on our homes. These trees need our help to ensure they have healthy growth. When they have a disease or insect problem, it is up to us to manage those pests to help them live many years. On Wednesday, April 18th from 5:30-7pm at the Clay County Activities Building in Clay Center, Nicole Stoner will teach us what to do with our trees. Nicole Stoner is a Horticulture Educator from Nebraska Extension in Gage County. This tree program is only $5.00 and will cover light refreshments and your educational materials. Nicole will cover watering, insect and disease problems, general care, and planting of trees. Please pre-register by April 13th with Nebraska Extension in Clay County. You can pre-register by calling 402-762-3644 or by emailing 






The Agriculture Council of America (ACA) will host National Agriculture Day on March 20, 2018. This will mark the 45th anniversary of National Ag Day which is celebrated in classrooms and communities across the country. The theme for 



