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// // // Peach aphid (Myzodes persicae)

Peach (greenhouse) aphid (Myzodes persicae)

Myzodes persicae

Peach aphids can damage more than 50 kinds of vegetables (for example, tomato, potato, pepper), green (parsley, lettuce, dill), ornamentals (gerbera, freesia, tulip, chrysanthemum) and fruit (lemon, peach). Crops and beans are considered not to be favorable for the development of the pest population.



Aphids feed on sap, on leaves and young shoots. The nutrition of the pest leads to loss of vitality of the host plant and can cause its death. When the colony of greenhouse aphids develops, the leaves of the plants first curl, then turn yellow and die, the flowers can fall off, the buds do not dissolve. The pest tolerates about 100 viral diseases, among which the most harmful are mosaic viruses. Surpluses of sugary compounds of aphids allocate in the form honey dew. In the presence of a large amount of sugary excretions on plants, they can develop sooty smudge. Covering plants, the fungus thereby prevents photosynthesis.

How to recognize peach aphid

The wingless female is ovoid in shape, about 2-2.5 mm long. The color of the covers can vary depending on the crop where pest develops: yellow-green, light-green, pinkish. Eyes are brownish-red. Juice tubules are cylindrical, widened at the base, along the length they occupy a quarter of the body. The tail is finger-shaped, yellow, three times shorter than the tubes.

Larvae do not have white spots on tergites.

The winged female is 2 mm long, has a black head, medium and postthorax, and a yellow-green prothorax. On the dorsal side of the belly there is a sclerotized central spot of black color. Eggs are oval, black with a reflection.

Крылатая форма оранжерейной тли картинка

The winged form of a greenhouse aphid


Pest life cycle

In the greenhouse, the incomplete cyclic form of the pest develops, that is, the colonies are represented only by parthenogenetic egg-living individuals, since full-cycle development requires the presence of a peach as a second host plant. One wingless female is capable of producing about 20-60 heirs per life.

The optimal temperature for development is 24-25°C, however, the pest tolerates lower temperatures and begins to reproduce already at 5°C. The development of larvae takes about 20-30 days at a temperature 5-10°C, as well as the average life expectancy of an adult. At 24°C the development of the larva takes 6-7 days. When duration of light day is shortened, winged females of peach aphid appear.

Prevention and control

Biological control

To control a small population of greenhouse aphids, it is recommended to use parasitoid aphidophages (Aphidius colemani, A. matricariae). At high pest it is more effective to use predator-aphidophages, such as: lacewing (Chrysoperla carnea), twin spot ladybird (Adalia bipunctata), Macrolofus pygmaeus and others. Also it is effective to use parasitoid and predatory entomophages to control peach aphids, when predators are used in the outbreaks and, at the same time, wasps are introduced which have good searching abilities and can find and destroy even small pest outbreaks.

Other methods of control

Use yellow traps to monitor winged aphid and prevent the spread of phytophagous in the greenhouse.