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Harold A. Denmark

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Harold A. Denmark

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emeritus entomologist, FDACS Department of Plant Industry.

Publications

thumbnail for publication: Twospotted Spider Mite, Tetranychus urticae Koch (Arachnida: Acari: Tetranychidae)

Twospotted Spider Mite, Tetranychus urticae Koch (Arachnida: Acari: Tetranychidae)

Thomas R. Fasulo and H. A. Denmark

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids, and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Honey Bee Tracheal Mite, Acarapis woodi (Rennie) (Arachnida: Acari: Tarsonemidae)

Honey Bee Tracheal Mite, Acarapis woodi (Rennie) (Arachnida: Acari: Tarsonemidae)

H. A. Denmark, H. L. Cromroy and M. T. Sanford

A UF/IFAS numbered Organism ID. in support of UF/IFAS Extension program: Integrated Pest Management

thumbnail for publication: Giant Bark Aphid, Longistigma caryae (Harris) (Insecta: Hemiptera: Aphididae)

Giant Bark Aphid, Longistigma caryae (Harris) (Insecta: Hemiptera: Aphididae)

H. A. Denmark

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Lovebug Plecia nearctica Hardy (Insecta: Diptera: Bibionidae)

Lovebug Plecia nearctica Hardy (Insecta: Diptera: Bibionidae)

H. A. Denmark, F. W. Mead, and T. R. Fasulo

The lovebug, Plecia nearctica Hardy, is a bibionid fly species that motorists may encounter as a serious nuisance when traveling in southern states. It was first described by Hardy (1940) from Galveston, Texas. At that time he reported it to be widely spread, but more common in Texas and Louisiana than other Gulf Coast states.

thumbnail for publication: Redbanded Thrips, Selenothrips rubrocinctus (Giard) (Insects: Thysanoptera: Thripidae)

Redbanded Thrips, Selenothrips rubrocinctus (Giard) (Insects: Thysanoptera: Thripidae)

H. A. Denmark and D. O. Wolfenbarger

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Cyclamen Mite, Phytonemus pallidus (Banks) (Arachnida: Acari: Tarsonemidae)

Cyclamen Mite, Phytonemus pallidus (Banks) (Arachnida: Acari: Tarsonemidae)

H. A. Denmark

A UF/IFAS numbered Organism ID. Published by Integrated Pest Management

thumbnail for publication: Gladiolus Thrips, Thrips simplex (Morison) (Insecta: Thysanoptera: Thripidae)

Gladiolus Thrips, Thrips simplex (Morison) (Insecta: Thysanoptera: Thripidae)

H. A. Denmark and J. F. Price

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Greenhouse Thrips, Heliothrips haemorrhoidalis (Bouche) Insecta: Thysanoptera: Thripidae)

Greenhouse Thrips, Heliothrips haemorrhoidalis (Bouche) Insecta: Thysanoptera: Thripidae)

H. A. Denmark and T. R. Fasulo

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Red and Black Flat Mite, A False Spider Mite, Brevipalpus phoenicis (Geijskes) (Arachnida: Acari: Tenuipalpidae)

Red and Black Flat Mite, A False Spider Mite, Brevipalpus phoenicis (Geijskes) (Arachnida: Acari: Tenuipalpidae)

H. A. Denmark and Thomas R. Fasulo

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Tropical Fowl Mite, Ornithonyssus bursa (Berlese) (Arachnida: Acari: Macronyssidae)

Tropical Fowl Mite, Ornithonyssus bursa (Berlese) (Arachnida: Acari: Macronyssidae)

H. A. Denmark and H. L. Cromroy

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Phalaenopsis Mite, Tenuipalpus pacificus Baker (Arachnida: Acari: Tenuipalpidae)

Phalaenopsis Mite, Tenuipalpus pacificus Baker (Arachnida: Acari: Tenuipalpidae)

H. A. Denmark

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: House Dust Mites, Dermatophagoides spp. (Arachnida: Acari: Pyroglyphididae)

House Dust Mites, Dermatophagoides spp. (Arachnida: Acari: Pyroglyphididae)

H. A. Denmark and H. L. Cromroy

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences. This document provides an in-depth profile of house dust mites, specifically Dermatophagoides farinae and Dermatophagoides pteronyssinus. It covers their distribution, physical description, life stages, biology, hosts, and economic importance. The article highlights the medical implications of house dust mites, particularly their role in causing allergies. It also discusses methods for detecting and managing mite populations, emphasizing the importance of reducing humidity and thorough cleaning. The document is part of the Featured Creatures collection, aimed at both laypersons with some biological knowledge and academic audiences. Original publication date October 1998.

thumbnail for publication: Leaf-Gall Thrips of Ficus Gynaikothrips ficorum (Marchal) and Gynaikothrips uzeli (Zimmerman) (Insecta: Thysanoptera: Phlaeothripidae)

Leaf-Gall Thrips of Ficus Gynaikothrips ficorum (Marchal) and Gynaikothrips uzeli (Zimmerman) (Insecta: Thysanoptera: Phlaeothripidae)

Joseph E. Funderburk, H. A. Denmark, Laurence Mound, Tom Skarlinskky, and Catharine Mannion

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids, and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: A False Spider Mite, Brevipalpus californicus (Banks) (Archnida: Acari: Tenuipalpidae)

A False Spider Mite, Brevipalpus californicus (Banks) (Archnida: Acari: Tenuipalpidae)

H. A. Denmark

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.

thumbnail for publication: Southern Red Mite, Oligonychus ilicis (McGregor) (Arachnida: Acari: Tetranychidae)

Southern Red Mite, Oligonychus ilicis (McGregor) (Arachnida: Acari: Tetranychidae)

H. A. Denmark, W. C. Welbourn, and T. R. Fasulo

The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences.