Cookies on Plantwise Knowledge Bank

Like most websites we use cookies. This is to ensure that we give you the best experience possible.

 

Continuing to use www.plantwise.org/KnowledgeBank means you agree to our use of cookies. If you would like to, you can learn more about the cookies we use.

Plantwise Knowledge Bank

Your search results

Species Page

green peach aphid

Myzus persicae

Distribution

You can pan and zoom the map
Save map

Host plants / species affected

Main hosts

show all species affected
Apium graveolens (celery)
Araceae
Arachis hypogaea (groundnut)
Armoracia rusticana (horseradish)
Asparagus officinalis (asparagus)
Beta vulgaris var. saccharifera (sugarbeet)
Brassica
Brassica rapa subsp. chinensis (Chinese cabbage)
Cajanus cajan (pigeon pea)
Capsicum (peppers)
Capsicum annuum (bell pepper)
Carica papaya (pawpaw)
Chrysanthemum (daisy)
Cichorium intybus (chicory)
Citrullus lanatus (watermelon)
Citrus
Colocasia esculenta (taro)
Coriandrum sativum (coriander)
Cucumis (melons, cucuimbers, gerkins)
Cucurbita (pumpkin)
Cuminum cyminum (cumin)
Cynara cardunculus var. scolymus (globe artichoke)
Daucus carota (carrot)
Dianthus caryophyllus (carnation)
Fragaria chiloensis (Chilean strawberry)
Gossypium (cotton)
Hordeum vulgare (barley)
Ipomoea batatas (sweet potato)
Lactuca sativa (lettuce)
Lolium (ryegrasses)
Lupinus (lupins)
Malus domestica (apple)
Medicago sativa (lucerne)
Nicotiana tabacum (tobacco)
Origanum majorana (sweet marjoram)
Papaver somniferum (Opium poppy)
Pastinaca sativa (parsnip)
Petroselinum (parsley)
Phaseolus (beans)
Poa (meadow grass)
Prunus (stone fruit)
Prunus armeniaca (apricot)
Prunus persica (peach)
Raphanus sativus (radish)
Saccharum officinarum (sugarcane)
Sesamum indicum (sesame)
Solanum lycopersicum (tomato)
Solanum melongena (aubergine)
Solanum tuberosum (potato)
Spinacia oleracea (spinach)
Trifolium (clovers)
Triticum (wheat)
Vicia (vetch)
Zea mays (maize)

List of symptoms / signs

Growing point - external feeding
Inflorescence - external feeding
Leaves - abnormal colours
Leaves - abnormal patterns
Leaves - honeydew or sooty mould
Leaves - honeydew or sooty mould
Leaves - honeydew or sooty mould
Leaves - leaves rolled or folded
Leaves - necrotic areas
Leaves - necrotic areas
Stems - external feeding
Whole plant - dwarfing
Whole plant - wilt

Symptoms

Effect of infestation depends greatly on host plant and transmitted viruses. Spring populations on peach cause severe leaf curl and shoot distortion. In potato, PLRV symptoms are leaf rolling and tuber stem necrosis. In sugarbeet, beet yellows viruses (BYV, BYDV, BWYV) cause yellowing in older leaves, chlorotic spotting, and thickening of the leaves, which become leathery and brittle.

On many crop plants (for example, potato, brassicas, sugarbeet) M. persicae only occurs at low densities, particularly on older leaves. Large colonies of the tobacco form (nicotianae) occur on growing stems and younger leaves.

Prevention and control

Chemical Control

Due to the variable regulations around (de-)registration of pesticides, we are for the moment not including any specific chemical control recommendations. For further information, we recommend you visit the following resources:


This information is part of a full datasheet available in the Crop Protection Compendium (CPC);www.cabi.org/cpc. For information on how to access the CPC, click here.

Impact

M. persicae is the most important aphid virus vector. It has been shown to transmit well over 100 plant virus diseases, in about 30 different families, including many major crops. Persistent viruses transmitted include Beet western yellows virus, Beet yellows virus, Beet mild yellowing virus, Pea enation mosaic virus, Bean leaf roll virus, Potato leaf roll virus and several viruses of tobacco (for example, Tobacco vein-distorting virus, Tobacco yellow net virus). Many more are transmitted by the non-persistent method, including Potato virus Y, Cucumber mosaic virus, Clover yellow vein virus, Alfalfa mosaic virus, Pepper veinal mottle virus, Plum pox virus, Lettuce mosaic virus and Tobacco vein mottling virus.

Direct feeding damage can result in stunting and reduced root weight, but populations on most crops do not reach levels causing obvious symptoms such as chlorosis or leaf curling, and the production of copious honeydew with associated sooty mould. However, significant yield losses can arise from direct damage on potatoes (Sexson et al., 2005) and visible distortion of leaves can occur on peach in the spring as well as on peppers and flower crops in greenhouses.

M. persicae is a major pest everywhere potatoes are grown. It is the most important vector of Potato leafroll virus (PLRV), which causes leaf roll and tuber rot necrosis. Seed potatoes have low tolerance for PLRV and low aphid populations can be very damaging.

Yield losses in sugarbeet due to beet yellows are more serious if infection occurs early in the season and can be up to 30-50%, with an increase also in the impurities present in the harvested sugar.

On peach (the primary host) the aphid causes twisting of the young leaves and on nectarines, pitting on and discoloration of the young fruits (Barbagallo et al., 2007).