Absence of mowing prevents resurgence of Tetranychus urticae and Panonychus ulmi (Acari: Tetranychidae) after broad-spectrum insecticide use in apple orchards

2020 ◽  
Vol 55 (4) ◽  
pp. 379-384
Author(s):  
Ken Funayama ◽  
Michiyo Komatsu
Keyword(s):  
Tetranychus Urticae ◽  
Broad Spectrum ◽  
Panonychus Ulmi ◽  
Apple Orchards

The Role of Predators and Other Biotic Agents in Regulating the Population Density of Phytophagous Mites in Ontario Peach Orchards

1966 ◽  
Vol 98 (8) ◽  
pp. 808-820 ◽  
Author(s):  
W. L. Putman ◽  
D. H. C. Herne
Keyword(s):  
Population Density ◽  
Population Growth ◽  
Tetranychus Urticae ◽  
Considerable Extent ◽  
Panonychus Ulmi ◽  
Apple Orchards ◽  
Rapid Population Growth ◽  
One Year ◽  
Heavy Mortality

AbstractMore than 40 species of insects and arachnids attack Panonychus ulmi (Koch), Tetranychus urticae Koch, T. canadensis (McGregor), Bryobia arborea Morgan and Anderson, or Aculus cornutus (Banks) in peach orchards of the Niagara Peninsula. The most effective predators attacking P. ulmi are Typhlodromus caudiglans Schuster, Haplothrips faurei Hood, Stethorus punctillum Weise, and Chrysopa spp. Peach orchards lack the predatory mirids characteristic of apple orchards. A condition, presumably disease, caused heavy mortality in one year. Endemic densities of P. ulmi are maintained in that state by predators, chiefly T. caudiglans, that subsist to a considerable extent on other sources of food, whereas epidemics of P. ulmi are reduced largely by other predators, chiefly H. faurei and S. punctillum, that increase in numbers by feeding on the mite during its period of rapid population growth but exert their greatest effect later in the season by destroying the winter eggs.

Species Dominance of Tetranychus urticae and Panonychus ulmi (Acari: Tetranychidae) in Apple Orchards in the Southern part of Korea

2014 ◽  
Vol 53 (4) ◽  
pp. 415-425 ◽  
Author(s):  
Kyung-Hee Choi ◽  
◽  
Dong-Hyuk Lee ◽  
Soon-Won Lee ◽  
Changmann Yoon ◽  
...  
Keyword(s):  
Tetranychus Urticae ◽  
Panonychus Ulmi ◽  
Apple Orchards ◽  
Species Dominance

PREY PREFERENCES OF ADULT AND IMMATURE ZETZELLIA MALI EWING (ACARI: STIGMAEIDAE) AND TYPHLODROMUS CAUDIGLANS SCHUSTER (ACARI: PHYTOSEIIDAE)

1993 ◽  
Vol 125 (5) ◽  
pp. 967-969 ◽  
Author(s):  
David R. Clements ◽  
Rudolf Harmsen
Keyword(s):  
Biological Control ◽  
Potential Role ◽  
Panonychus Ulmi ◽  
Economic Damage ◽  
Apple Orchards ◽  
Effective Management ◽  
Phytoseiid Mites ◽  
Prey Preferences ◽  
Eriophyid Mites

Effective management of the interactions within the mite community is critical to biological control of economically damaging phytophagous mites such as Panonychus ulmi Koch (Tetranychidae) (Clements and Harmsen 1990). Although much is known about the potential role of phytoseiid mites in controlling P. ulmi (Dover et al. 1979), mites from at least seven other families may be present in apple orchards (Thistlewood 1991). Stigmaeid mites are predators which may play a beneficial role in biological control in conjunction with phytoseiids (Clements and Harmsen 1992). Eriophyid mites are phytophagous but seldom cause economic damage, and may compete with tetranychids and provide alternative food for predators of tetranychids (Croft and Hoying 1977).

THE INFLUENCE OF SPRAY PROGRAMS ON THE FAUNA OF APPLE ORCHARDS IN NOVA SCOTIA: XX. TRENDS AFTER ALTERING LEVELS OF PHYTOPHAGOUS MITES OR PREDATORS

1970 ◽  
Vol 102 (5) ◽  
pp. 592-601 ◽  
Author(s):  
K. H. Sanford ◽  
H. J. Herbert
Keyword(s):  
Nova Scotia ◽  
Apple Orchard ◽  
Typhlodromus Pyri ◽  
Panonychus Ulmi ◽  
Apple Orchards ◽  
Direct Effects ◽  
Phytophagous Mites ◽  
European Red Mite ◽  
Predacious Species

AbstractUtilizing the knowledge of their direct effects, the materials ryania, carbaryl, and Animert V-101 applied to a uniformly distributed population of the European red mite, Panonychus ulmi (Koch), altered the populations in plots in an apple orchard. Trends after treatment in both host mite and predator populations were assessed. Supplementary applications of the acaricides Animert V-101 or dicofol directed against certain generations of P. ulmi controlled outbreaks and altered the faunal levels during the following season. Ryania was largely innocuous to most species of predators with the exception of Atractotomus mali (Meyer) and Diaphnocoris spp., carbaryl was detrimental to most predacious species, and Animert V-101, while selectively toxic to phytophagous mites, was innocuous to all predacious insects and Typhlodromus pyri Scheuten.Phytophagous mite populations may be altered to almost prescribed levels with pesticides when the predator populations are known. This allows selective chemicals to be used to complement the predator effect and maintain red mites below the threshold of damage.

THE EGGS AND OVIPOSITION SITES OF DIAPHNIDIA CAPITATA (HEMIPTERA: MIRIDAE) ON APPLE TREES

1970 ◽  
Vol 102 (10) ◽  
pp. 1316-1319 ◽  
Author(s):  
R. L. Horsburgh ◽  
Dean Asquith
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mites ◽  
Panonychus Ulmi ◽  
Apple Trees ◽  
Oviposition Sites

AbstractNymphal and adult Diaphnidia capitata (Van Duzee) have long been recognized as predators of Panonychus ulmi (Koch) and Tetranychus urticae Koch. The eggs and oviposition sites preferred by this species are described herein to supplement available descriptions of the eggs of mirid predators of spider mites.

BIOLOGICAL CONTROL OF PANONYCHUS ULMI IN APPLE ORCHARDS IN LLEIDA (NE OF SPAIN)

1993 ◽  
pp. 267-272 ◽  
Author(s):  
J. Avilla ◽  
D. Bosch ◽  
M.J. Sarasúa ◽  
J. Costa-Comelles
Keyword(s):  
Biological Control ◽  
Panonychus Ulmi ◽  
Apple Orchards
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