Aphids are small, soft-bodied insects that are common pests of roses. They are mainly green, red, black and can be found on the undersides of leaves, stems, and flower buds. Aphids damage roses by sucking out the sap, which can stunt growth, distort leaves, and cause flowers to be stunted.
Scientific name: Macrosiphum rosaeformis
Type: Sucking Pest
Target: Flower and Leaves
Damage: Withering of tender shoots and curling of leaves
Identification:
Size: They are very small, typically only ranging from 1.5 to 3 millimeters in length.
Shape: Pear-shaped or oval-shaped body.
Color: Aphids can be various colors, including green, yellow, red, brown, or black. The most common color of aphids on roses is green.
Body: Their body is soft and pear-shaped, and they lack wings, although some adult aphids may develop wings as the colony matures.
Antennae: They have two long, thread-like antennae.
Environmental favorable factors for pests/Diseases:
Temperature:Aphids prefer warm temperatures, typically between 68-80°F (20-27°C).
Humidity: Aphids thrive in moderate to high humidity levels (50-80%).
Symptoms of Pest/Disease:
- Curling or distorted leaves
- Stunted growth
- Sticky sap on the leaves and stems (honeydew)
- Presence of ants on the rose bush (ants are attracted to the honeydew produced by aphids)
Measures to control Pests/Diseases:
| Products |
Technical Name |
Dosage |
| Thioxam |
Thiamethoxam 25 % wg |
200 g/ha |
| FOXY |
Thiomethoxam 4% SC |
350 ml/acre |
| FANTASY PLUS |
Fipronil 4% + Acetamipirid 4% |
2ml per liter of water |
