Recent News


The spotted lanternfly (Lycorma delicatula )is an invasive sap-feeding planthopper, first discovered in the United States in Berks County, Pennsylvania in 2014.
Field observations indicate that the tree of heaven, Ailanthus altissima, is an important host plant; however the spotted lanternfly is known to feed on a wide range of hosts including wild and cultivated grapes, stone fruits, willow, and various hardwoods. This species is thought to… Read More

Pesticides Ban Overturned

A Circuit Court judge overturned Montgomery MD county’s ban on the use of pesticides dealing a major setback to advocates who argued that chemicals in the products are unsafe.
The NALP, in a press release, stated that the opinion soundly reinforces the premise that pesticides are highly regulated at the federal and state levels and that public… Read More


A newly-discovered species of tree-killing bark beetle, Dendroctonus mesoamericanus Armendáriz-Toledano and Sullivan, has been described in a paper published online in the Annals of the Entomological Society of America by a group of researchers that includes a U.S. Forest Service scientist.
Numerous and diverse studies by a research team that includes members from the U.S., Mexico, and Norway determined the… Read More

All the Trees Will Die, and Then So Will You

The polyphagous shot hole borer, a brown-black beetle  from southeast Asia, never gets bigger than a tenth of an inch. It breeds inside trees; pregnant females drill into trunks to create networks of tunnels where they lay their eggs. The beetles also carry a fungus called Fusarium; it infects the tunnels, and when the eggs hatch, the borer larvae eat the fungus.
Unfortunately Fusarium also… Read More

Apple Scab


Apple scab, Venturia inequalis, affects apple, crabapple, pear and many other species of Malus throughout North America. The cool, wet weather that is common in early spring favors the development of apple scab.
Symptoms first appear in the spring as lesions on the leaf surface. When heavily infected, the leaves become distorted and drop early in the summer. Scab may be controlled by an early injection of either Read More

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