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Most common pests to find on your Rosebush – Rose Plant Leaves

The below is a brief description of pests you may find on the leaves of your rose bushes and rose plant leaves. Take a look at the top pests below which provides a brief introduction on the pest, how they can affect your rose plant and steps on how to get rid of them.

Contents Table

| Most common pests to find on your Rosebush – Rose Plant Leaves | 1Garden.com

Cockchafer (May Bug) and Rose Chafer

How to spot if you have Cockchafers

The rose chafer is a deadly bug to your red roses as their main diet includes flower blossom. You will need to look out for these around late May (early spring) and even more so if the rose chafer has been a problem before. It’s good to note that these are also underground pests, you may spot if you have chafer problems by the following things;

How to get rid of Cockchafer (May Bug) and Rose Chafer?

As the damage left by the chafer bug can be pretty devastating, you will need to get on top of these as soon as possible. Therefore ensure you are checking these as often as you can and following a few of the tips below. 

| Most common pests to find on your Rosebush – Rose Plant Leaves | 1Garden.com

Agromyzidae (Leaf-miner)

How to spot if you have leaf miners

The adult leaf miners are typically not easy to spot, as they are small and look very similar to the hunched-back house flies; however, below are some easier signs to look out for; 

How to get rid of Leaf-miners?

So if you notice you have these, we understand if you want to get rid of them as soon as possible. Here are a few tricks for you:

Rose Slugworm

Although it’s not the adult sawflies that cause the problems, it’s a good idea to look out for these during June-October when they are most active; typically, if you have the adults in your garden, you will have a slug worm infestation.

Here are a few things to spot if you have them in your garden: 

How to get rid of Rose slugworm?

Now, we know a light infestation won’t cause significant damage to your roses as a whole, but leaving them can cause the leaves to become distorted. So it’s always best to get on top of these ASAP before anything detrimental happens! Here are our tricks; 

Red Spider Mite

How to spot if you have Red Spider Mite

The red spider, also known as the fire ant, attacks typically during hot, dry weather. Left untreated, it can lead to leaf loss and, in worse case scenarios, the death of your rose plant. Red spider mites are active and a problem from March-October; however, these can be a problem all year round in glasshouses.  

How to get rid of Red Spider mite?

It’s known that controlling the red spider mite can be challenging since insecticides kill off their natural predators. It’s also good to note that chemical controls should not be applied to your rose bushes during the heat of the day.

The best time for application is a cool early morning, and only once they have well-watered. You can read more about chemical controls and when to apply here. 

Caterpillars

How to spot if you have caterpillars

Caterpillars are in the larva stage of their life cycle before they turn into baby moths or butterflies. 

To progress through these stages of their lives, they need to be fed, and due to plants containing all the essential and vital vitamins they need to grow, they will be munch away from your plants if they get a chance. 

Adults are typically active from April through to October. There are over 2,000 species of caterpillars in the UK.

How to get rid of Caterpillars?

You’ll be pleased to know that caterpillars will not kill your roses, but they can cause some severe damage by weakening your plant’s ability to grow new leaves, which is needed to survive. 

Ultimately, this will make them more susceptible to diseases or infestations. Combined with this, they can leave unsightly damage they leave behind. 

Early detection is always best; check the underside and the lower part of the leaves of your rose. 

The best option is to pick these off by hand; luckily, they are harmless and will not sting or bite, although we would suggest wearing gloves.

Rose LeafHopper (Edwardsiana rosae)

How to spot if you have Leaf- Hopper

In greenhouses, the leafhopper can be active all year round. However, they are most active April-September; and attracted by the warm weather. 

Adults lay their eggs on the leaves and feed on the plant’s sap; they also leave behind a honeydew.  

How to get rid of Rose leafhoppers

Often, leafhoppers can be tolerated as they do not cause any problems to your plants’ growth or vigour. 

However, we recommend a preventative measure to regularly check your roses to get on top of an attack before they get out of control. 

Once you have cleared the infestation, affected leaves will remain the same colour as when damaged, but new growths will develop normally. 

Leaf-cutter Bee

How to spot if you have leaf-cutter bee

Belonging to the Megachilidae family, there are more than seven leaf-cutter bee species; they are most active during late spring to late summer and truly are fascinating. 

These are solitary bees and are harmless, but it’s always good to be able to spot them in your garden. 

How to get rid of leaf-cutter bees?

Control methods should not be taken; although the female may cut-leaf foliage off plants, this will not affect your plant’s vigour. They are fascinating pollinators and should be treated as a valuable part of our gardens. 

An excellent alternative to make your garden more bee-friendly is to buy or make a “bee hotel”, and in return, they are great at pollinating your fruit and veg. All bees are so important to our environment and us.

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