Articles written by Janet J. Knodel


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  • Hornets Swarming

    Janet J. Knodel|Sep 4, 2013

    The Extension Entomology office has started getting calls on annoying hornets swarming, or hornet nests in homes or in trees near houses. Prairie YellowjacketHornets (or yellowjackets) belong to the family Vespidae. All yellowjackets sting and their stinging behavior is considered a defensive reaction when the colony is threatened. They can sting more than once because their stinger stays with the insect. Yellowjackets are more aggressive during August and September and more likely to sting...

  • Protect Our Pollinators When Using Pesticides

    Janet J. Knodel|Aug 7, 2013
    3

    Agricultural production is in full swing in North Dakota, and flowering field crops or weeds in the field are important food sources of many species of pollinators, including honey bees and native bees. Bees are attracted to blooming field crops, such as canola and sunflowers, and even weeds, such as dandelions, wild mustard, white clover and goldenrod, in the field for nectar and/or pollen. Remember if you need to spray a flowering crop with insecticide or any other pesticide, please read,...

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