Blackberry Psyllid Phylloplecta tripunctata (Fitch, 1851)  Synonyms: Psylla tripunctata, Trioza tripunctata.

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An excellent study of Blackberry Psyllids by Richard Orr in Howard Co., Maryland (9/8/2013). Richard shared the following details: "Blackberry Psyllids (Trioza tripuncata) cause the wool covering on the bottom of our native Blackberry (Rubus sp.) leaves. This psyllid has a single generation and overwinters as adults on conifers. If no conifers are present then the psyllid cannot complete its life cycle. In the spring the adults begin to return to the blackberry plant. A curling of the leaves becomes obvious after the adults have fed on the brambles for 7-10 days. Eggs are laid from approximately late May through mid-July. Females can lay up to 200 eggs. The nymphs (lower right hand corner) can be found on the undersides of the leaves and are responsible for the copious wooly flock. Adults (lower left hand corner) emerge from late summer through early fall. Upon emergence, males and females are present in equal numbers but the males do not survive the winter." Photo by Richard Orr. (MBP list)


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