Potato pests and beneficial insects oregon state university. Major potato diseases, insects, and nematodes semantic scholar. Insect pests of potatoes in home gardens vtechworks virginia. Colorado potato beetle redheaded flea beetle general facts. The potato plant has a branched stem and alternately arranged leaves consisting of leaflets which are both of unequal size and shape. Potato flea beetles appear beginning at emergence produce small round puncture holes in leaves cause yield reduction due to reduced growth and vigor the larvae feed on potato roots. Several insects are guilty of attacking potato plants and tubers. Download the diseases and defects of the potato poster here.
Potato diseases are caused by fungi, bacteria, viruses, mycoplasmas, a viroid, nematode m. Biology and management provides a comprehensive source of uptodate scientific information on the biology and management of insects attacking potato crops, with an. Both the adult, or beetle, and the blackspotted, red larva feed on potato leaves. Pick them off or spray bacillus thuringiensis san diego on the young larvae. Here we discuss arthropod predators and parasitoids of major potato pests. Colorado potato beetle cpb, leptinotarsa decemlineata, is a notorious destructive pest that mainly feeds on the leaves of potato and several other solanaceous plants. Potato pest and disease management food and agriculture. Colorado potato beetles overwinter in the soil as adults. Pest management guidelines potato university of californias official guidelines for pest monitoring techniques, pesticides, and nonpesticide alternatives for managing pests in agriculture. Management of insect pests on potatoes california agriculture. Ideally, seed fields are isolated from commercial fields and home gardens from. Potato, solanum tuberosum, is an herbaceous perennial plant in the family solanaceae which is grown for its edible tubers.
In addition to potato, colorado potato beetles can be a serious pest of tomato, eggplant, and pepper. The common black and yellowstriped potato bug, a very familiar insect, is the most serious pest of potatoes. Pest infestations can be identified by the type of. Pdf india has a great diversity of insect pests attacking potato. Larvae are reddish pink with two rows of dark spots on each. The potato tuberworm attacks foli age and infests tubers in the field and in storage. Most seed potatoes are grown in cool, short season areas where pest populations, including vectors of potato viruses, remain low and the symptoms of infected plants easier to recognize. International year of the potato 2008 potato pest and. The leaflets can be oval to oblong in shape and the leaves can reach 1030 cm 412 in in length and 515 cm 26 in wide. Some pests feast on the potatoes themselves while others chew on foliage. An encyclopaedia of pests and natural enemies in field crops. Occurrence of potato insect pests in the pacific northwest of the united states.
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