GardenSeeker.Co.Uk Pruning Businesses Search Gardening Gifts

Leaf Rolling Sawfly on Roses. Rolled up leaves with grub inside  

Leaf Rolling Sawfly damage is easy to see. The leaf rollers literally roll up the leaves - often on rose bushes - and lay their egg inside the cosy little nest they have formed. The egg hatches out into a grey green grub - caterpillar - that feeds on the sap from within its home.

The rolled up leaf normally shrivels and dies.

Damage starts in late spring, as leaves at the tips of new growth are drawn down to form a circular 'enclosure' for the eggs to be laid and resulting grubs to feed on the leaves and sap.

In this process, the rose sawfly emits a chemical secretion which forces the leaf to curl. 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contact insecticides are not normally effective, for the do not easily penetrate the damage rose leaves. Systemic insecticide such as Provado Ultimate Bug Killer will normally work, but it will have to be applied at an early stage to be really effective. Perhaps Provado used as a part of a regular routing spraying of special rose bushes may be the best form of defence.

The adult sawfly is similar to a wasp in appearance, and similar to the group of hover wasps, hover flies that are beneficial in the garden.






extraAdvert


Popular Gardening Sections

Card image cap
Sections

Learn - all aspects of lawn maintenance, how to build and maintain a pond, care and grow vegetables and fruit, fit for your table.

Sections
Card image cap
Problems

Identify Weeds in The Garden - How to deal with weeds. Diseases and Pest which harm your garden and plants, learn how to prevent, deter and erradicate your garden problems.

Garden Problems
Card image cap
Pruning

Pruning Guide. Shrubs flower better with correct pruning. Many illustrations and examples of what to do - and when. Includes evergreens, roses, flowering shrubs, spring flowering shrubs and pruning for stem effect. This is our most viewed and comprehensive section,

Pruning
Card image cap
Gardening Businesses

Gardening Businesses listed in the UK counties and USA states. County and State Listings of businesses involved in Garden supplies and services. If you wish to be added to the Directory, please send us your information. Having problems, use the search box

Businesses
Card image cap
Gardening

In this section you will learn about Gardening Basics, Containers, Landscaping, Propagation and Soil.

Gardening

Copyright © GardenSeeker.Co.UK - 2000 - 2021

Advertising listing / Privacy Policy
Contact Us