Holbrook House Farm
Holbrook House Farm

Black Oak Gall Wasp

Black oak gall wasp

Black Oak Gall Wasp Fact Sheet and infestation treatment

Black Oak Gall Wasp has had many names since its arrival on Cape Cod. But has generally come to be known as the Black Oak Gall Wasp due to the arthritic bumps the wasps create on trees during its infestation.

The Black Oak Gall Wasp worked its way up the coastline from New Jersey, decimating the oak trees of Long Island as it passed through on its was to Cape Cod. It also wreaked havoc in oak populations of Rhode Island and Connecticut due to the lack of a known prevention. Cape Cod and other areas in New England reported considerable losses of black oaks due to black oak gall wasp infestation.

Hundreds of thousands of black oak trees over more than 1,500 acres in Southeastern Massachusetts, mainly on Martha’s Vineyard and Cape Cod, have shown signs of infestation this year by the black oak gall wasps, according to aerial photos taken by officials at the state Department of Conservation and Recreation. That’s nearly 400 acres more than last year.

Black Oak Gall Wasp Infested Tree Recognition

Black Oak trees show the first signs of infestation in the spring when branches fail to produce leaves, or leaves are either very small or begin to brown around the edges soon after they uncurl. Other signs include broken branches that easily snap off the tree and which contain arthritic-like bumps and tiny pin-like holes. If not treated in time, trees will perish. The black oak gall wasp reproduces by boring into new growth and depositing its eggs, causing galling which "girdles" new growth and chokes it to death. Thus the strangled clusters of new leaves curl and die.

Black Oak Gall Wasp Treatment

Until very recently, no effective treatment was known for Gall Wasps.
Holbrook House Farm has teamed with Arborjet, a cutting edge plant health care innovator, in its development of a new product with proven results against the persistent Gall Wasp insect on Cape Cod. The product is injected in the tree, much like an IV in the hospital. There is no spray that drifts into the neighbor's yard, or drenches to contaminate the earth.  All the effect of the product used is contained in the black oak tree where it is completely metabolized.

As an added bonus, the active ingredient used for the gall wasp also prevents gypsy moths and winter moths along with a myriad other pests common to Cape Cod for up to three years. Our Cape Cod gall wasp treatment is safe, effective and pollution free. And to date, John Holbrook boasts that he hasn't lost a single tree due to our Cape Cod Gall Wasp treatment.

Prevention and control of other tree diseases

John Holbrook has tended to Cape Cod trees for forty years. He has managed the challenges of pine tip moth, gypsy moth, winter moth, black turpentine beetles other beetles, and local Cape Cod pests. Diseases previously believed fatal to trees are now being treated by Holbrook House Farm with new methods. Ask John what he can do for your pests and tree diseases.

Tree fertilization program

Holbrook  House Farm uses a method called deep root tree fertilization to target tree root development, foliar health and resilience to diseases. John mixes and batches his fertilizers and growth stimulant ground injections from their base elements to meet the onsite conditions, and to protect our sole source aquifer and ecosystem. We apply humates and biotic stimulators for root development as well as more conventional mixes to assist in foliar growth and resilience.

Contact Holbrook House Farm today for more information about preventing and treating Black Oak Gall Wasp infestation and other Cape Cod tree health issues .

Call us for Cape Cod Gall Wasp Elimination at 508-362-3348 today!

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