September 26, 2018
October 8, 2018
Click on links below to jump to that question.
The number of leaves does not determine if that cane is a sucker cane alone. Sucker canes typically have a vigorous growth rate and usually do not bud or bloom. If they do bloom, the blooms are either light pink or dark red and do not match the desired rose purchased. So just keep an eye on the canes you feel may not be right with the rest of bush. The lower portions of the canes will typically host more leaves as well.
If you can obtain a product called Bayer Tree and Shrub granules. Apply per the label directions for ornamental shrubs. The granules are a mix of fertilizer and a systemic that will typically take care of many pest issues. I would also recommend spraying the entire rosebush well with a fungicide called Green Cure, available on-line. Or a fungicide you can buy locally for roses or ornamental shrubs. Also try watering the rosebush with some water that has a product called Super Thrive mixed into the water. The super thrive is full of readily available nutrients that will help the rose deal with all stressors and shock. You can use such water mix to water in the Bayer granules mentioned about as well. Water the bush with the same fresh batch water mix the next 4 to 5 times she needs watering.
Is this a new climbing rosebush that you just planted or is it an older bush? If it is a new bush, then the rosebush may be getting too much nitrogen fertilizer which creates loads of foliage and reduces bud formation and blooming. If it is an older established climbing rosebush, it may be a grafted rosebush and upper part has died and the shoots coming up from below ground are the root stock rose. The root stock canes are quite vigorous and grow very well with lots of foliage. Some do not bloom for a couple years. Also some older roses bloom on the "old wood"https://u5f3e3x3.stackpathcdn.com/the previous years growth. So if pruned too heavily they will not bloom until the next year if not pruned too heavily. Here is a link to an article I wrote on rosebushes not blooming that may be helpful to you as well: https://www.gardeningknowhow.com/ornamental/flowers/roses/no-blooms-on-roses.htm