Unfortunately, that’s an all-too-common occurrence for property owners in Bucks County and a number of other regions in Eastern Pennsylvania, where a devilish little pest known as the white pine weevil attacks and subsequently kills the tops of trees each year.

The white pine weevil operates by hibernating in the winter near potential host trees. Come spring, they crawl or fly onto a tree’s top “leader” branch, which is where they start feeding on inner bark tissue. Egg-laying happens soon after the feeding begins. And yet weevil activity is not normally noticed until mid-summer, when the terminal growth of the tree wilts and starts to curve, resembling the crook of a shepherd’s staff. This part of the tree then begins to dry out and turn brown, often falling off later in the season. Depending on the amount of activity, this may be the top two or three inches of the tree.

This can be a wholly preventable problem, and here’s the truly good news: It’s a problem that doesn’t need to involve the spring spraying of multiple pesticide applications, which is unfortunately still a standard treatment for white pine weevil in Pennsylvania.

Pesticide spray treatment isn’t just a potentially harmful solution, though. Where the weevil is concerned, it’s also complicated and time-intensive.

In order for the pesticide to do its job, each subsequent application needs to be sprayed during a very specific phase of the weevil’s lifecycle. And when you consider that the pest is known to attack some 20 different tree species in the eastern part of the country (it’s especially fond of eastern white pines, jack pines and Norway spruce trees), you’ll probably agree that a pesticide-spraying campaign is less than ideal.

We’ve found that a single, well-timed fall soil injection of an insecticide called Imidacloprid can give complete control. With our precise injection equipment, we can get the proper amount of chemical where it needs to be in the soil, so that it’s translocated up to the leader of the tree by the time these weevils begin their spring feeding the next year.

There are a few different reasons we’re so fond of this particular method: It’s less environmentally risky than spraying, because a less active ingredient of the chemical is used overall. It also has a significantly smaller impact on natural enemies of the weevil than spraying does. With our systemic injection method, you will also save money over the cost of multiple spring spray applications.

This is literally the perfect time of year to stop weevil infestations in their tracks before the tops of your Bucks County or Montgomery County trees turn brown.

If you’d like to learn more, contact our team today, and let us know what questions you have. We’re here to help.

Our native landscape designer, Beverly Auvil shared with us her suggestions on how to attract butterflies to your yard:

Butterflies are attracted to “butterfly bushes” or the Buddleia davidii, so it’s natural that people buy these plants trying to bring more butterflies onto their property. Butterflies are attracted to these plants because they feed on the nectar, but the Buddleia is an exotic invasive plant. Exotic plants are species that evolved in different ecosystems and have few native predators and diseases. According to Michael Dirr, a professor of horticulture at the University of Georgia and expert on landscape trees and shrubs, both Buddleia alternifolia and Buddleia davidii are native to China.

The biggest problem with the Buddleia, or the butterfly bush, is that it is indeed invasive to Bucks County and surrounding areas. Since it is an exotic plant and has fewer predators and diseases, it can out- compete native plants, altering the balance in native habitats. It will produce seeds and the seeds will travel through birds, wind and other animals to additional locations. When an exotic, invasive plant invades our local ecosystem it takes the place of a native plant. When more and more exotic plants replace native plants on our properties and natural areas, our habitats begin to become compromised. This causes our indigenous butterflies and other wildlife to decline in population, or even become extinct.

To truly understand how to attract butterflies to your property, it’s important to also understand the life cycle of butterflies. Here is an example using the Monarch butterfly:

1. A Monarch lays her eggs on a milkweed plant, or the Asclepias
2. A Monarch caterpillar develops from the egg and feeds on the milkweed (also referred to as the larval food or the host plant)
3. The caterpillar then creates a cover for itself, called the pupal case
4. The butterfly emerges from the case when its ready

Once the butterfly is out of the case it feeds on nectar from flowers. Although they are able to get nectar from a variety of flowers they need milkweed to lay their eggs on because it is the only thing the caterpillar can feed on. If you don’t have milkweed, you won’t have any Monarchs.

Here are some alternative plants to the butterfly bush that you could plant on your property to attract butterflies:

Want to add some of these butterfly-attracting plants to your property? Contact Peter Benz Landscaping and we can provide an on-site consultation and create a landscape design accordingly.