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Amanda
Some retardation of petals with browning on petal edges, some leaves experiencing same but minimal.

Great growth and healthy looking plants with plenty of buds and foliage but flower petals have browning on edges and not opening and forming a nice, strong, moist looking flower. Affected areas appear to have a dry look to them but rest of plant lush. Some yellowing leaves, particularly in plant centre where shooting off main stems. Some leaves have a slight curl, dry appearance and feel. We have treated for black spot and not totally rid of it yet but it is minimal at present. Flower issue is new, was not present when flowering last time. Is it thrips? Have sighted many little black beetle looking bugs in flowers. Variety of rose species all in pots-Camelian, Mr Lincoln, Gene Tierney, Cybelle and Iceburg.

Submitted: 08:49AM, 11 Oct 2013
Answer: Hi Amanda, You have a lovely selection of roses in your pots which I am sure you value greatly. Roses do seem to attract a number of pests and diseases, but luckily Yates have some excellent product to help your roses to stay healthy and to eradicate those nasty pests. Flowers with brown petals have probably been attacked by plague thrips. Thrips can be controlled by spraying with Rose Gun Advanced or Rose Shield. These products will also control aphids,budworms two-spotted mites, whitefly, black spot, powdery mildew and rust. The main thing is to keep your roses strong and healthy by apply a good quality rose fertiliser – Dynamic Lifter Plus Organic Based Flower Food would be excellent for your roses. Spray every two weeks with Rose Shield to keep those bugs away. Mulch and water on a regular basis particularly during the hot summer months. Enjoy your roses. I am sure they will produce some beautiful blooms for you.
Answered: 03:00PM, 17 Oct 2013

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