Managing mealybugs in cassava

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Source:

https://www.accessagriculture.org/managing-mealybugs-cassava

Duration: 

00:16:00

Year of Production: 

2016

Source/Author: 

Agro-Insight
»Farmers in Thailand share practical tips to reduce the chance of mealybugs arriving in your cassava field. Special attention is paid to planting time; using healthy planting materials; disinfecting cassava stakes; protecting beneficial insects; and regularly observing the crop«

Cassava is grown world for its starch and edible tubers but is affected by pests and diseases. Mealybugs are one of the serious pests of cassava and need to be managed.

Mealybugs are of different types and each has a different shape. They can be white, pinkish or greenish. They can all be controlled the same way. Mealybugs can be spread by wind, water and humans and the mealybug attacked cassava produces small tubers.

Control practices

Mealybugs are managed and controlled by a number of practices which include eliminating and burning infected crop residues after harvesting of cassava. This prevents transmission of the mealybugs to the next season. Crop rotation with crops like maize, sugarcane or any other non host crop of mealybugs. You can again plant cassava after the other crop has been harvested. Early planting of cassava the onset of rains as it washes away the mealybugs hence having few of them or none on the plants.

Beginning with healthy planting materials and disinfecting plant materials. These aim at planting cassava stems that are free from mealybugs. Regular field inspection throughout the season to remove any plant parts affected by mealybugs to reduce on disease spread. The removed parts are then burnt to kill the mealybugs.

 

Sequence from Sequence to Description
00:0002:13Mealybugs are one of the pests threatening cassava production and need to be managed.
02:1402:53Mealybugs are of different types and each has a different shape. They can be white, pinkish or greenish.
02:5403:48A single mealybug can produce many young ones and hence cause damage. Mealybugs lay their eggs in a whitish woolly sac on the cassava plant.
03:4904:40Mealybug affected cassava produces small tubers. They produce honey dew which attracts ants. Presence of ants can be a sign of mealybug attack.
04:4105:16Mealybugs are spread by wind, animals and humans.
05:1707:15To control mealy bugs, remove and burn infected crop residues.
07:1607:34Carry out crop rotation with maize, sugarcane or any other crop.
07:3507:53Plant cassava at the beginning of the rainy season.
07:5408:26Buy and plant uninfected planting materials.
08:2709:12Apply fertilisers to produce vigorous plants.
09:1310:19Disinfecting planting materials.
10:2011:55Using natural enemies of mealybugs.
11:5612:44Using pesticides but these are expensive and less effective.
12:4512:57Monitoring your field regularly while removing and burning infected parts.
12:5813:30Collective community effort to control mealybugs.
13:3116:00Summary.

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