The dead lower branches in these Austrian pines (Fig. 1) are due to Diplodia (= Sphaeropsis) tip blight. The causal fungus infects newly elongating shoots, in late spring, resulting in stunting and death of the new growth (Fig. 2). Black spore-bearing structures of the causal fungus are formed at the base of the stunted brown[Read More…]
Resources for landscapes and gardens in the Midwest
Landscape Report
When houseplants and garden seedlings are kept too wet, roots can rot and the fungus that grows in the soil can feed fungus gnats. For houseplants, fungus gnats are usually just a nuisance. When growing seedlings or in a greenhouse adults can spread fungal diseases to flowers. Larvae can spread fungal diseases when they feed[Read More…]
This winter has been very mild, especially compared to last year. With the mild temperatures throughout the season, most plants have accumulated enough growing degree days to start bud break when temperatures become favorable. Utilizing the Spring Leaf Index, via the United States National Phenology Network (USNPN), spring has been trending 10-20+ days early this[Read More…]
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