How to Control Rose Sawfly 

Glad it was helpful!

You're welcome!

My friend swears by that. My rose is in a pot right now, so I wouldn’t be contaminating my organic plants. I may try that. 🤔

The best thing to do is to care for the plant as best as you can, and cross your fingers that the plant can fight through it. It is important not to overwater plants when they are damaged. Plants that have less leaves due to damage require less water, than they previously did. Many gardeners fall into the trap of overwatering damaged plants, which ends up speeding up the death of the plant. As per the video, make sure to fertilize the bush to promote new growth. Spraying at this point can help prevent secondary insects from munching on the plant throughout the summer. Next year, it would be a good idea to proactively spray the leaves with either a systemic spray or long-lasting contact insecticide like "Hi-Yield Bug Blaster": www.wasconursery.com/product/bug-blaster/

​@@WascoNurseryThank you!

Yeah neem does not work against them. At least in concentrations of recommend strength.

If you are local, I recommend bringing in a sample of the pumpkin for us to look at. If you are not local, I recommend reaching out to a local, reputable garden center with a plant clinic or nearby university extension office. Just as a general tip, many insects are host specific to one type of plant. For example, Rose Sawfly, the insect mentioned in this video, does not harm other plants during its larval stage. That being said, there are other insects like aphids and mites (among others) that can spread between different plant genera.

Hello, unfortunately roses will not survive the winter if brought indoors. Roses, like other perennials, require a dormant period in which the temps must get very cold. If they are brought indoors, they will not be able to have a dormant period, since the temps will remain hot. If you would like to avoid planting them in the ground, you can bring them into an unheated garage and water them once per month (or as needed).

Regarding the larvae, Rose Sawfly is host specific to roses, meaning it should not eat any other plants.

@@WascoNursery didn't know that. I brought them in last winter guess I got lucky. Thanks will put in my outside shed. Appreciate the reply as well.

@@heywoodjablome2018 Roses are weird and can sometimes survive without a dormant season... That being said, I still strongly recommend putting them in a place like your shed (unheated, but protected from cold wind).

You can submit photos to our plant help hotline by texting: 630.584.4424

Thanks for reaching out. Is it a newly planted one? If so, make sure not to over water it. Roses do not like to be over watered. They also do not like mulch touching their trunks, since it holds in extra moisture. Allow the plant to fully dry out between waterings. If the plant has been there for a long time, check to see if there are any fungal or insect issues, like the ones mentioned in our other Rose Care videos. Trimming out diseased branches, spraying and fertilizing are all things that you can do to help established roses.

Rose sawfly typically only eat the leaves themselves. She may be seeing Japanese Beetles, which are another insect we covered in a previous video. Re: systemic sprays, if pollinators visit a plant while systemic insecticides are inside the plant, they could die. That being said, most of the insecticides will only last a couple of weeks, so if you are concerned about pollinators, just make sure to do it before the blooms come or as they are starting.

Yes, but you will have to spray it every 2 weeks, while the insects are feeding. You will also need to make sure that you spray the undersides of the leaves, since they typically go to there. Neem oil is a great product, but it does not last as long as a systemic would, so it can be less effective if it isn't applied frequently and generously.

@@WascoNursery thank you for taking the time in being so specific in your answer. It is so appreciated!

Bonide's Systemic Insect Spray

I just responded to your other comment with some care methods. Feel free to stop in with photos too, if you are local to the St. Charles, IL area.