Insects
They leave half moon cuts on leaves
Leaf Cutter Bees
A fungus that leaves a white powdery substance on the rose plant. It requires cool, damp nights and warm sunny days to develop.
Powdery Mildew
What is the green leaf-like structure located at the base of a flower that protects the unopened bud
Sepals
The most popular rose usually grows with tall canes and single blooms
Hybrid tea
Stimulates strong canes and good blooms. Is letter "N" on fertilizer bags.
Nitrogen
They create a hole in the center of the cane
Cane Bores
This is a bacterial disease that is a tumor like growth that is often near pruning cuts or the base of the rose
Crown Gall
Usually green and a flattened appendage of a rose stem that specializes in Photosynthesis
Leaf
Smaller size bushes than hybrid teas that are usually in sprays but can be single blooms grow about 3 to 4 ft tall
Floribundas
Promotes root growth and bloom color. Is "K" on fertilizer bags
Potassium
The most common of all insects. Usually the first insect in the garden each year.
Aphids
A fungal pathogen that leaves dark spots on leaves, needs warm, wet weather to develop
Black Spot
What is the male reproductive organ of a rose
Stamens
Can be single blooms or sprays and are taller bushes then hybrid teas but not climbers
Grandifloras
Promotes root growth and big blooms. Is "P" on the fertilizer bag
Phosphorus
The suck the juice out of the rose bloom before it opens leaving the edge of the petal brown.
Flower thrips
A virus that causes mottled leaves, line patterns, spots, and leaf curl. It results in fewer blooms and short stems. Very rarely found in maricopa county.
Rose Mosaic Virus
What is the female reproductive organ of a rose
Pistil
Smaller plants that the blooms are one quarter inch to about 2 inches in diameter
Minatures
What two chemicals promotes sturdier plants and promotes chlorophyll formation for greener foliage
Calcium and Magnesium
Not a true insect but they feed on the leaves and can sometimes leave a web
Spider Mites
Disease that occurs under moist cloudy spring conditions. Young leaves, stems and flowers may manifest purple to red or brown irregular spots
Downy Mildew
A modified leaf the surrounds the reproductive parts of a rose giving the rose its shape and color
Flower Petals
What class of roses are Austin roses
Shrub
What chemical is used in Maricopa County to lower PH
Sulfur