OAK GALL CONTROL | BUGSPRAY

If you have oak trees, you might have spotted small, unsightly brown balls at the end of some branches. They tend to look like a piece of fruit but they are generally embedded on what was once a flowering oak bud.

These balls are called oak galls and occur due to a reaction the tree has to a wasp. This wasp is a non-stinging species but they target oak buds in early spring. For a month or two they’ll be laying eggs and target the newly opened buds. During their egg laying process, they inject a hormone into the buds tissue which causes this odd shaped gall to grow. Its a type of allergic reaction, similar to poison oak or sumac.

Galls don’t cause injury but if you allow enough to grow, they can indirectly cause “suffocation” and in the end, the tree can die as a result.

If you’re finding galls on your oaks, the best treatment is to use is PROTHOR SC2 by both systemic soil drenching AND foliage spray.

Prothor SC2 is a non repellent and as such, these insects won’t know its present. They’ll readily forage over treated buds, pick up a lethal dose and die when Prothor SC2 is applied to foliage.

The following “short video” (less than 60 seconds long) shows how to apply it using our GREEN TOPPED HOSE END SPRAYER which is ideal for spraying “up” as high as your garden hose can reach.

Feeding insects will be impacted by the systemic action of Prothor SC2 when used as a soil drench.

So you can effectively treat buds up high by the systemic action assuming you treat in the fall or winter. But spring time budding can happen before treatments can make it up to the top of the tree so you’ll need a good 3-4 months of being in the ground for the Prothor SC2 to help systemically – especially if the trees are 50 feet high or more.

For systemic treatments, use 1 oz of Prothor SC2 in 3-4 gallons of water for every 10″ of tree width. So if the tree is 20″ wide, you’ll need 2 oz of Prothor SC2 in 7-8 gallons of water poured down small holes you poke in the ground around the tree trunk. The holes can be made with a piece of rebar or a SOIL AUGER like the one we have below (view the video below to see how easy it is to drench).

Treatments should be made in the fall and then again in the spring so plan on treating twice a year.

For extra protection, spray the opening springtime buds with the Prothor SC2 4mixed 1 oz to a gallon of water. Reach as many limbs as possible and rely on the systemic action of previous treatments to reach the upper levels.

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Our Green Topped Sprayer is the best way to make most applications to tree foliage since it uses the power of your garden hose.

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For low lying shrubs or trees 15 feet or less, a standard PUMP SPRAYER can get the job done.

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If you need to reach up 35-40 feet or more, our NO PUMP SPRAYER will help big time.

The following “in depth” video shows how this sprayer works.

It relies on air pressure and can be pumped up to 80-90 psi safely. The small one can hold 1.5 gallons of mixture and when pressurized, will pump out the entire contents with only one time filling it with air. It’s especially helpful when you need to treat trees that are not reachable with a garden hose.

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For soil drenching, the Soil Auger in a portable cordless hand drill will make ideal holes.

This short video (less than 1 minute) shows how to use the Auger which is super helpful for getting the holes in the ground needed for soil drenching.

As you can see, the process is easy and systemic treatments are the best way to keep all your trees happy and healthy in the long run.

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