Tag Archives: dave cheung

The Monday Report – June 29th

One of the most filthiest scale insect pests known to horticulturalists, the Euonymus scale (Unaspis euonymi) is a tiny little armored scale that covets evergreen Euonymus fortunei in the garden or landscape.  Adult females have a dark cover that is wider at the posterior end, sea-shell in appearance with white margins. The smaller males have […]

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Late Spring IPM for Landscape and Nursery

Foliar diseases such as Anthracnose can be seen on deciduous trees in the landscape, especially on maple, ash and oak.  The fungus infects leaf tissue as it is emerging, especially during cool, wet springs.  Fungal infection causes some distortion and … Continue reading

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Boxwood Leafminer Adults Are Flying Where Black Locusts are in Flower Bud!

Boxwoods in the landscape not looking so good?  Are you seeing a lot of yellow-brown spots on leaves?

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BANNER Year For Gypsy Moth Larvae!

First instar Gypsy moth (Lymantria dispar) larvae have hatched and are dispersing! Larvae produce silken threads and take a ride in the wind in hopes of landing on other delicious botanical hosts.

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The Monday Report: May 25, 2020

We can still see the remains of low temperature injury from a couple of weeks ago.  Not to worry, the next set of leaves will cover up the desiccated leaves and stems.

Posted in Arboriculture, Christmas Trees, Diseases, Environment, Insects, IPM, landscape, Nursery Production, Plant Nutrition, Weather, Weekly Nursery Landscape Report | Tagged , , , | Leave a comment

IPM in August

  Lots of hairy caterpillars can be found feeding openly on foliage of nursery and landscape ornamentals this time of year.   Above you will see Hickory tussock Moth (Lophocampa caryae, Family: Erebidae left photo) and the very common Virginian tiger … Continue reading

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Still Lots Of Opportunities For IPM

One of the most filthiest scale insect pests known to horticulturalists, the Euonymus scale (Unaspis euonymi) is a tiny little armored scale that covets evergreen Euonymus fortunei in the garden or landscape.  Adult females have a dark cover that is wider at the posterior end, sea-shell in appearance with white margins. The smaller males have […]

Continue reading

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IPM This Week (June 10)

Foliar diseases such as Anthracnose can be seen on deciduous trees in the landscape, especially on maple, ash and oak.  The fungus infects leaf tissue as it is emerging, especially during cool, wet springs.  Fungal infection causes some distortion and … Continue reading

Posted in Diseases, Insects, Nursery Production, Plant Nutrition, Weekly Nursery Landscape Report | Tagged , , , | Leave a comment

Boxwood Leafminer Adults Are Flying

Boxwoods in the landscape not looking so good coming out of the winter?  Are you seeing a lot of yellow leaves? Can you see any yellow-green-brown spots?

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Leps Looking Moderate-High in Some Areas

            Seeing holes in newly emerged leaves but all you can find are dark, fuzzy little caterpillars?  Gypsy moth larvae have also begun to feed.  Look for holes in leaves and turn over inspect  leaf … Continue reading

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