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What pests commonly affect gala apple trees?

Oct 16, 2026

Hey there! I'm a supplier of Gala apples, and I've been in this business for quite a while. Gala apples are super popular, known for their sweet taste and crisp texture. But like any other fruit trees, Gala apple trees are prone to various pests. In this blog, I'll talk about the pests that commonly affect Gala apple trees.

Apple Maggot

The apple maggot is a real pain in the neck for Gala apple growers. These little critters are the larvae of a fly. The adult flies lay their eggs just under the skin of the apples. Once the eggs hatch, the larvae start tunneling through the fruit, leaving behind brown, winding trails. This not only makes the apples look bad but also makes them inedible.

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You can tell if your Gala apples are infested with apple maggots if you see small, pin - sized holes on the surface of the fruit. And when you cut the apple open, those ugly tunnels are a dead giveaway. To control apple maggots, you can use sticky traps. Hang these traps in the apple trees during the fly's peak activity period, usually from mid - June to early September. You can also use insecticides, but make sure to follow the instructions carefully to avoid harming beneficial insects.

Codling Moth

Codling moths are another major pest for Gala apple trees. The adult moths lay their eggs on the apples or leaves near the fruit. When the eggs hatch, the larvae bore into the apples, usually through the calyx end. They feed on the apple's flesh, causing it to rot from the inside.

One way to spot a codling moth infestation is to look for small, brown frass (insect poop) near the entrance holes on the apples. To prevent codling moth damage, you can use pheromone traps to catch the adult moths. These traps use synthetic sex pheromones to attract the male moths, reducing the number of mating pairs. You can also apply insecticides at the right time, which is usually when the first flight of adult moths occurs.

Aphids

Aphids are tiny insects that suck the sap from the leaves, stems, and young fruit of Gala apple trees. They reproduce really quickly, and a small aphid infestation can turn into a big problem in no time. When aphids feed on the tree, they can cause the leaves to curl, yellow, and eventually drop off. They also secrete a sticky substance called honeydew, which can attract ants and promote the growth of sooty mold.

You can often find aphids clustered on the undersides of leaves or on new growth. To get rid of aphids, you can spray the trees with a strong stream of water to knock them off. You can also use insecticidal soaps or neem oil, which are less harmful to beneficial insects compared to chemical insecticides.

Mites

Mites are so small that you might not even notice them at first. But they can cause a lot of damage to Gala apple trees. Spider mites, in particular, are a common problem. They feed on the leaves by piercing the plant cells and sucking out the contents. This causes the leaves to turn yellow, bronze, or stippled. In severe cases, the leaves can fall off, which weakens the tree and reduces fruit production.

To check for mites, you can hold a white piece of paper under a branch and tap the branch gently. If you see tiny, moving specks on the paper, those are likely mites. You can use miticides to control mite infestations, but make sure to choose a product that is safe for apple trees and follow the application instructions.

Scale Insects

Scale insects are another pest that can affect Gala apple trees. They attach themselves to the branches, twigs, and leaves of the tree and suck the sap. There are different types of scale insects, such as armored scales and soft scales. Armored scales have a hard, protective covering, while soft scales secrete a waxy substance.

Scale insects can cause the tree to become weak, and in severe cases, they can even kill the tree. You can identify scale insects by looking for small, oval - shaped bumps on the branches and leaves. To control scale insects, you can use horticultural oils during the dormant season. These oils suffocate the insects by coating them and blocking their breathing pores.

Leafrollers

Leafrollers are the larvae of certain moths. They get their name because they roll up the leaves of the apple tree and live inside the rolled - up leaves. They feed on the leaves, which can reduce the tree's ability to photosynthesize and produce energy. This can lead to stunted growth and reduced fruit quality.

To find leafrollers, look for rolled - up leaves on the tree. You can manually remove the rolled - up leaves and destroy them to get rid of the larvae. You can also use insecticides to control leafrollers, but make sure to target the larvae when they are young and more vulnerable.

As a Gala apple supplier, I know how important it is to keep these pests under control. We offer high - quality Gala apples, like our 100 Gala Apple, Class 1 Gala Apple, and 10kgs Gala Apple. If you're interested in purchasing our Gala apples, we'd love to have a chat with you about your needs. Whether you're a grocery store, a restaurant, or an individual looking for delicious apples, we can provide you with the best quality fruit. Just reach out, and let's start a conversation about your Gala apple procurement.

References

  • "Pests of Apple Trees" by the University of Extension.
  • "Integrated Pest Management for Apple Orchards" by the Department of Agriculture.
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