Panonychus ulmi

(Koch, 1836)

European red mite, fruit tree red spider mite, apple red spider mite

Panonychus ulmi, the , is a major agricultural pest of deciduous fruit trees with global economic significance. The exhibits a high reproductive rate and short time of approximately 21 days at 20°C, enabling multiple per year. It possesses a distribution spanning Europe, Asia, Africa, North America, South America, and Australasia. First described by Carl Ludwig Koch in 1836, this spider mite is particularly damaging to apple orchards and grapevines.

Infested sycamore leaf, Kiltonga - geograph.org.uk - 917897 by Albert Bridge. Used under a CC BY-SA 2.0 license.

Unknown mite by Mick E. Talbot. Used under a CC BY 2.0 license.

ACAR Tetranychidae Panonychus ulmi by Desmond W. Helmore
. Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Panonychus ulmi: //pænəˈnaɪkəs ˈʌlmaɪ//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Associated with deciduous fruit trees and forest trees; found in apple orchards, grapevines, and other cultivated fruit tree systems. In Brazil, climatically suitable areas occur in the southern region where temperature regimes favor establishment.

Distribution

distribution documented across Europe (including Austria, Belgium, France, Germany, Italy, Netherlands, Spain, UK, and others), Asia (China, India, Iran, Israel, Japan, Korea, Lebanon, Syria, Taiwan), Africa (Algeria, Egypt, Libya, South Africa, Tunisia), North America (Canada, USA), Central America and Caribbean (Bermuda, Rica), South America (Argentina, Brazil, Chile, Uruguay, Venezuela), and Australasia (Australia, New Zealand). Within Brazil, the southern region (Paraná, Rio Grande do Sul, Santa Catarina) is environmentally favorable.

Host Associations

apple - primary Malus communis; cv. Starking Delicious identified as favorable
grapevine - Vitis vinifera
quince - Cydonia oblonga
sweet cherry - Prunus avium
sour cherry - Prunus cerasus

Life Cycle

time of approximately 21 days at 20°C under laboratory conditions (25±2°C, 60±10% RH, 16:8 L:D). Multiple produced annually.

Ecological Role

Agricultural pest of global economic importance on deciduous fruit and forest trees

Human Relevance

Major agricultural pest causing damage to fruit tree crops; growth performance studies indicate potential for serious pest status on multiple plants under favorable conditions. Predictive distribution modeling used to identify climatically suitable areas for monitoring and management.

Similar Taxa

Panonychus citriCongeneric with overlapping distribution in Japan; both are agricultural pests requiring differentiation in regional surveys

More Details

Population biology

Laboratory studies demonstrate highest net reproductive rate, , and finite rate of increase on apple cv. Starking Delicious compared to quince, cherry, and sour cherry. growth parameters vary significantly by plant.

Environmental responses

increases with plant phosphorus content and is optimized at 60-75% relative humidity; most favorable conditions combine high phosphorus with 75% RH at 21-25°C.

Historical taxonomy

Originally described as Tetranychus ulmi by Koch in 1836; later transferred to Panonychus.