ClipArt ETC

The Disease and Pest Management ClipArt gallery offers 103 illustrations of agricultural diseases and pests as well as devices and techniques used to manage loses from disease and pests.

Wild mustard the proper size for spraying.

Wild Mustard

Wild mustard the proper size for spraying.

Opposite side of steam spraying apparatus constructed by the Shade and Fruit Tree Protective Association of New York.

Opposite Side of Steam Spray Apparatus

Opposite side of steam spraying apparatus constructed by the Shade and Fruit Tree Protective Association…

An orchard barrel pump is used to apply insecticide.

Orchard Barrel Pump

An orchard barrel pump is used to apply insecticide.

Pictured are pear leaves attacked by phytoptus pyris, also known as gall mites. A represents a leaf recently attacked by mites. B represents a leaf with old mite galls.

Pear Leaf Attacked by Phytoptus Pyris

Pictured are pear leaves attacked by phytoptus pyris, also known as gall mites. A represents a leaf…

Rosetelia cancellata fungi causes the leaves to become covered with large, raised spots that are deep red.

Pear Leaves Attacked by Roestelia Cancellata

Rosetelia cancellata fungi causes the leaves to become covered with large, raised spots that are deep…

The Peteler locust crushing machine was a horse drawn device used to trap and kill locusts. Locusts were a serious hazard to agriculture in the 1800's; this device was one of many used in an attempt to cut back on overwhelming locust populations.

Peteler locust crushing machine

The Peteler locust crushing machine was a horse drawn device used to trap and kill locusts. Locusts…

Protecting from cut-worms.

Plant Protection

Protecting from cut-worms.

Showing methods of cutting paper to protect plants from maggots.

Plant Protection

Showing methods of cutting paper to protect plants from maggots.

A barrel outfit, called a Ponama barrel used to spray insecticide

Ponama Barrel

A barrel outfit, called a Ponama barrel used to spray insecticide

"It is not unusual to fine a decayed spot in the center of potatoes otherwise apparently in good condition. A microscopic examination a portion of the diseased part will show that the decay commenced where the vascular bundles concentrate. At that point the air is in greater volume than elsewhere. Although these mineral acids and caustic alkalies dissolve starch granuals, they do not affect the cellulose cells which contain the starch. When such spots are exposed to the atmosphere the fungus blue-mold forms on the surface. This disease, therefore, has not relation to potato-rot, as ordinarily understood. f represents the mycelium (roots) of blue-mold, Penicillium glaucum, and G that of potato-rot, Peronospora infestans." -Watts, 1874

Potato Diseases at a Microscopic Level

"It is not unusual to fine a decayed spot in the center of potatoes otherwise apparently in good condition.…

Pictured is a potato leaf that has been attacked by phytophthora infestans. Phytophthora infestans is a fungus commonly known as the potato disease fungus. Brown spots appear on the leaves. The lower surface of the spot bears a thin, whitish coating.

Potato Leaf Attacked by Phytophthora Infestans

Pictured is a potato leaf that has been attacked by phytophthora infestans. Phytophthora infestans is…

Illustrated is the early blight of a potato plant. It is a type of lesion causing more or less sudden death of the leaves, stems, shoots, or blossoms.

Early Blight of Potato

Illustrated is the early blight of a potato plant. It is a type of lesion causing more or less sudden…

A fungal disease that affects potato plants. It causes small lesions on the plant, eventually killing them.

Early Blight of Potatoes

A fungal disease that affects potato plants. It causes small lesions on the plant, eventually killing…

Illustrated is a power sprayer used to apply insecticides. It used in orchards.

Power Sprayer

Illustrated is a power sprayer used to apply insecticides. It used in orchards.

A tool used in washing the dust off plants. It can also wash the eggs of insects off the leaves before they have a chance to hatch.

Fountain Pump

A tool used in washing the dust off plants. It can also wash the eggs of insects off the leaves before…

One of the best known machines of its type, the Riley Locust-Catcher was employed to exterminate mass numbers of locusts plaguing fields. This device funneled locusts into a bag, sometimes containing poison, that would trap and kill the locusts.

Riley Locust-Catcher

One of the best known machines of its type, the Riley Locust-Catcher was employed to exterminate mass…

Sometimes known as Brown Rot, Monilinia fructigena is a plant pathogen. "Sclerotinia fructigena. a, the conidial form known as Monilia." -Whitney, 1911

Brown Rot

Sometimes known as Brown Rot, Monilinia fructigena is a plant pathogen. "Sclerotinia fructigena. a,…

"Scale-insect. Oyster-shell bark-louse of the apple (Mytilaspis pomorum); male. a, ventral view with wings closed; b, dorsal view with wings expanded; c, scale (line shows natural size); d, leg; f, antennal joint." -Whitney, 1911

Scale Insect

"Scale-insect. Oyster-shell bark-louse of the apple (Mytilaspis pomorum); male. a, ventral view with…

Corn smut is a plant disease caused by the pathogenic fungus Ustilago maydis that causes smut on maize and teosinte. The fungus forms galls on all above-ground parts of corn species.

Corn Smut

Corn smut is a plant disease caused by the pathogenic fungus Ustilago maydis that causes smut on maize…

Illustrated is a splint broom used for applying insecticide. It is an early device.

Splint Broom

Illustrated is a splint broom used for applying insecticide. It is an early device.

A leaf damaged by the tobacco split worm.

Split Worm Damage

A leaf damaged by the tobacco split worm.

Geared automatic sprayer used by J. S. Lupton, Winchester, VA.

Lupton's Automatic Sprayer

Geared automatic sprayer used by J. S. Lupton, Winchester, VA.

Illustrated is the spraying of insecticide on park trees. This is done using a traction power sprayer.

Spraying Park Trees

Illustrated is the spraying of insecticide on park trees. This is done using a traction power sprayer.

Steam spraying apparatus constructed by the Shade and Fruit Tree Protective Association of New York.

Steam Spray Apparatus

Steam spraying apparatus constructed by the Shade and Fruit Tree Protective Association of New York.

Left-hand side of steam spraying machine constructed by W. R. Gunnis, San Diego, Cal.

Left Side of Steam Spraying Machine

Left-hand side of steam spraying machine constructed by W. R. Gunnis, San Diego, Cal.

Near view of couplings and details of steam spraying apparatus used in Prospect Park, Brooklyn, N.Y.

Prospect Park Steam Spraying Machine

Near view of couplings and details of steam spraying apparatus used in Prospect Park, Brooklyn, N.Y.

Right-hand side of steam spraying machine constructed by W. R. Gunnis, San Diego, Cal.

Right Side of Steam Spraying Machine

Right-hand side of steam spraying machine constructed by W. R. Gunnis, San Diego, Cal.

Steam spraying machine constructed by the city authorities of Springfield, Mass.

Springfield Steam Spraying Machine

Steam spraying machine constructed by the city authorities of Springfield, Mass.

Steam spraying machine used by T. B. Wilson, Hall's Corners, N.Y.

Wilson's Steam Spraying Machine

Steam spraying machine used by T. B. Wilson, Hall's Corners, N.Y.

"Sulphurators are instruments for distributing flowers of sulphur, for the purpose of destroying mildew. In the case of greenhouse plants, such as heaths, simply dusting with sulphur through a muslin bag or dredger is sufficient." — Encyclopedia Britannica, 1893

Sulphurator

"Sulphurators are instruments for distributing flowers of sulphur, for the purpose of destroying mildew.…

A brass syringe, which is useful for washing dust off plants.

Brass Syringe

A brass syringe, which is useful for washing dust off plants.

A tool used for washing dust off plants.

Parlor Syringe

A tool used for washing dust off plants.

The Anderson Coal-oil Contrivance was a simple and effective locust extermination device. A flat pan was filled with coal tar or kerosene, and dragged over the surface of a locust infested field. Locusts would panic and jump into the pan, falling into the kerosene/tar, and die.

The Anderson Coal-oil Contrivance.

The Anderson Coal-oil Contrivance was a simple and effective locust extermination device. A flat pan…

The Flory-locust machine was a horse-drawn implement used by farmers to exterminate locust populations. This device was employed with moderate effect. Locusts would be startled into jumping as it rolled over them, and crushed in the moving belts.

The Flory-Locust Machine

The Flory-locust machine was a horse-drawn implement used by farmers to exterminate locust populations.…

The Price pan was a simple and effective locust extermination device. A flat pan was filled with coal tar or kerosene, and dragged over the surface of a locust infested field. Locusts would panic and jump into the pan, falling into the kerosene/tar, and die.

The Price Oil-Pan

The Price pan was a simple and effective locust extermination device. A flat pan was filled with coal…

Illustrated is a traction power sprayer used for spraying insecticide. It is used for street and park trees.

Traction Power Sprayer

Illustrated is a traction power sprayer used for spraying insecticide. It is used for street and park…

Protecting trees from cut-worms.

Tree Protection

Protecting trees from cut-worms.

Pictured is a white pine sapling that has an injured tip due to the white pine weevil. The white pine weevil feeds exclusively beneath the bark of the terminal shoots of young trees.

Injured White Pine Sapling

Pictured is a white pine sapling that has an injured tip due to the white pine weevil. The white pine…

Illustrated is the base of a young white pine tree attacked by <I>Armillaria mellea</I>. The mushroom <I>Armillaria mellea</I> can become parasitic, killing trees over large areas.

White Pine Tree Attacked by Armillaria Mellea

Illustrated is the base of a young white pine tree attacked by Armillaria mellea. The mushroom Armillaria…

Pictured is the stem of a white pine tree attacked by the white pine blister-rust fungus, <I>Cronartium ribicola</I>. Illustrated is the fruiting stage in the process of rupturing the bark.

White Pine Tree Stem with Fungus

Pictured is the stem of a white pine tree attacked by the white pine blister-rust fungus, Cronartium…

The Wilson-Rhode locust catcher was a horse-drawn device used to trap and kill locusts. Locusts were a serious hazard to agriculture in the 1800's; this device was one of many used in an attempt to cut back on overwhelming locust populations.

Wilson-Rhode Locust Catcher

The Wilson-Rhode locust catcher was a horse-drawn device used to trap and kill locusts. Locusts were…

A cross-section of wood infested with insects.

Infested Wood

A cross-section of wood infested with insects.

Woolly aphis is a plant lice. Eggs are attached to twigs during the winter. In the spring soft-bodied, wingless female aphid appear and give birth to young aphids. They suck the juices from leaves or twigs.

Wooly Aphis on Alnus

Woolly aphis is a plant lice. Eggs are attached to twigs during the winter. In the spring soft-bodied,…