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Controlling potato beetles with BT


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Prevention of nitrogen deficiency in potatoes


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FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Malawi, July 2018
Prevention of nitrogen deficiency in potatoes
Recognize the problem
Nitrogen deficiency in potato results in reduced yields. The problem of nitrogen
deficiency is common in many parts of Malawi. Symptoms of nitrogen
deficiency in the soil are lighter coloration of the foliage and in severe cases,
leaves are pale yellow or chlorotic, especially lower leaves, and the leaf mass...

plantwise.org

Prevention of potassium deficiency in potatoes


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FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Malawi, July 2018
Prevention of potassium deficiency in potatoes
Recognize the problem
Potassium deficiency in potato results in poor quality tubers and reduced
yields. The problem of potassium deficiency is common in soil in many parts of
Malawi. Symptoms of potassium deficiency in potatoes are poor root and leaf
growth, which subsequently leads to poor water and nutrient uptake of other
crop...

plantwise.org

Earthing up in Irish potato


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FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, August 2013
Earthing up in Irish potato
Recognize the problem
Irish potatoes (called Magwili in Tonga) harvested from un-ridged fields are
usually greenish brown and not the normal creamy white, brownish or purplish
colour. These tubers have a bitter taste, are poisonous and should not be sold,
even not at a low price. Un-ridged fields produce low yields.
Background
When tubers grow in...

plantwise.org

Mechanical control of potato early blight


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FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Afghanistan, March 2017
Mechanical Control of Potato Early blight
Recognize the problem
Early blight is a fungal disease of potato, with the disease prevalent during
periods of dry weather with intermittent rain. The disease may appear in an
epidemic in many parts of the potato growing areas.
Background
The disease first appears on the older leaves of potato plants as angular, oval
or circular...

plantwise.org

Potato bacterial wilt control


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FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Afghanistan, February 2016
Potato Bacterial Wilt Control
Recognize the problem
Bacterial wilt is economically a very important disease of potato throughout the
world and was first reported in 1896 in the United States of America. Potato
growers face losses from their potato production as a result of this disease. In
some countries in Africa, Asia and Latin America, bacterial wilt is endemic,...

plantwise.org

Management of potato late blight


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FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Myanmar [Burma], June 2014
Management of Potato late blight
Recognize the problem
Late blight disease affects all of the aerial parts of potato plants and starts at
the tip or the margin of leaves and then develops into water-soaked lesions.
Within a few days, the lesions become necrotic, turning brown when dry and
purplish-brown when wet. White mildew-like sporulation is visible around the...

plantwise.org

Neem to support control of late blight in potato


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FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2014
Neem to support control of late blight in potato
Recognize the problem
Late blight is a fungus-like mould disease in potato that spreads fast in cool
and humid weather. Infected plants have necrotic areas on their leaves which
wilt, bend downwards, become weak and eventually die. Look for white cotton-
like surfaces on root necks after rains. Inside tubers, late blight causes...

plantwise.org

Management of leaf miner fly


Potato whitefly


Bacterial wilt of potato


Weevil management in sweet potato


Sweet potato weevil control using Sunnhemp


Potato leaf miner


Potato thrips


Cotton jassid


Potato fusarium wilt


Management of flatid planthoppers


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Bolivia
,
July
2012
Management of flatid planthoppers
Recognize the problem
The affected plants become yellow and dry. This insect attacks crops like corn,
potato and vegetables. It also attacks forage, some weeds, trees with pods,
tobacco bushes and refuges in the native forest.
The adults live on the undersides of leaves, stems, branches and flowers like in
corn. When they suck the...

plantwise.org

Barriers to prevent Andean potato weevil


Certified seeds for healthy crops


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Peru
,
October
2012
Certified seeds for healthy crops
Recognize the problem
Several crops become sick because the seeds are of poor quality.
Sometimes the plants do not develop at all or they grow already sick.
Background
Some seeds can carry diseases. For example, the bean virus and the potato
virus can be inside the seed.
Certified seeds are produced in the fields of specialized...

plantwise.org

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