Archive for the ‘Plant Problems’ Category
      Winter Kill 2013-14
      By lavender at Jun. 13. 2014. with No Comments
      Posted in: Plant Problems

      We’ve been hearing about the extensive damage that extreme winter conditions have caused to both evergreen and deciduous shrubs this year. Knockout roses have been hit particularly hard. These tough, basically carefree bushes are hardy to around -20 degrees F with individual differences. We had temperatures this winter that were that low and lower. There...

      Poisonous Plants: Another Point of View

      There is nothing more frustrating than growing a plant all season only to have it eaten off by the wildlife before it blooms. Unless maybe it is the chipmunks and squirrels consuming all of those expensive bulbs that you put in with great hopes of enjoying their spring beauty. Have you ever planted a nice...

      African Fig Fly  Zaprionus indianus Gupta
      By lavender at Apr. 5. 2013. with No Comments
      Posted in: Plant Problems

      Gardeners who grow fruit, especially small fruits such as cherries, blueberries, blackberries, strawberries and raspberries, might be seeing a new invasive pest this summer. According to Penn State researchers the African fig fly (Zaprionus indianus Gupta) has been found in Adams, Clearfield Dauphin, and York Counties. The African fig fly entered the country through ports...

      Impatiens and Mildew
      By lavender at Apr. 4. 2013. with No Comments

      A number of northern gardeners lost impatiens during the last growing season due to infected plants that were greenhouse grown or came in from the south.  Typically impatiens (Impatiens walleriana) exhibited yellow leaves, which turned brown and dropped. Fuzzy, white patches were visible on the bottoms of the leaves before the leaves disappeared. Ultimately, the...

      An Old Mildew and a New Mildew
      By lavender at Oct. 2. 2012. with No Comments
      Posted in: Plant Problems

      Most gardeners are familiar with powdery mildew.  This is the white patchy fungus that shows up on phlox and bee balm late in the season. We also see it on squash and occasionally on tomatoes.  Among the annuals zinnias are particularly susceptible. In severe cases the leaves become distorted, brown and drop off. It thrives...

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