Resources

Using Farmknowledge is as simple as using other search engine like Google, Bing and Yahoo. For quick results, use the filters on the right.
If you want to search on resource title or summary, or search via crop or pest name in a local language, use the text box below and click apply.

Vinegar sprays to control powdery mildew in okra


20177800426.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, September 2016
Vinegar sprays to control powdery mildew in okra
Recognize the problem
Powdery mildew (Bungabunga in Bemba) is a fungal disease and a common
problem in the dry and hot season. During the initial stages whitish powdery
fungal spots can be seen on the leaves. When severe, the leaves become
totally covered with the whitish power, and then yellow, dried or brownish.
Stems can...

plantwise.org

How to take a soil sample for analysis


20177800427.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, September 2016
How to take a soil sample for analysis
Recognize the problem
Farmers experience deficiencies of nutrients such as phosphorous, calcium,
magnesium and other deficiencies in their fields which reduce plant growth and
yield. To address these deficiencies, professional soil testing is required to
understand which soil nutrients are present at what quantities in the soils and...

plantwise.org

Gummy Stem Blight of Christophene


Eucalyptus gall wasp (Blue gum chalcid)


20167801209.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Ethiopia, October 2015
Eucalyptus gall wasp (Blue gum chalcid)
Recognize the problem
The gall forming wasp is an insect that has only recently been introduced to
Ethiopia. The wasps cause damage to young eucalyptus trees and seedlings on
farms and in plantations and nurseries. The main symptoms that can be seen
on the trees are slightly raised swellings (galls) on either side of the mid-rib of...

plantwise.org

Maize dryness testing before storage


20167800025.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Maize dryness testing before storage
Recognize the problem
Post-harvest losses are a common problem in maize production. Some farmers
are storing maize before the cobs and grains are dry enough. Then fungal
diseases germinate on the grains and destroy them.
Background
Farmers must dry or wait for their maize grains to dry in order to avoid
germination of fungal diseases in the...

plantwise.org

Management of maize streak virus


20157800328.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Ethiopia, August 2015
Management of maize streak virus
Recognize the problem
Maize streak virus is very common in Ethiopia and is found in almost all maize
growing areas. It has been reported to cause disease incidences that vary from
a few infected plants per field to total yield loss with 100% infection. Erratic
epidemics have been occuring every 3-10 years. The main damage caused is to...

plantwise.org

Cultural control of mango pulp weevil


20167800147.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Cultural control of mango pulp weevil
Recognize the problem
Mango pulp weevil is a small beetle that feeds inside mangoes. It is closely
related to the mango seed weevil, but is slightly different. The difference is
that the mango pulp weevil and its larvae destroy the pulp, whereas mango
seed weevils destroy the seed. The weevil larvae are white, legless grubs with
a brown to...

plantwise.org

Garlic formulations to control aphids in cabbage


20167800148.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Garlic formulations to control aphids in cabbage
Recognize the problem
Cabbage suffers from aphid attacks. Aphids are tiny, pale grey or green, soft-
bodied insects. They can have wings or no wings. They often sit in groups on
the underside of leaves. They suck plant sap, spread viruses and excrete a
sticky liquid that coats the plant. Fungi will thrive on the sticky liquid...

plantwise.org

Ladybirds to control aphids in cotton


20167800149.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Ladybirds to control aphids in cotton
Recognize the problem
Cotton (Butonje in Tonga) is often attacked by aphids (njina in Tonga, inda in
Nyanja). The aphids are tiny greenish or blackish, soft insects that can have
wing or no wings. They are so small so that you can only just see them. They
often sit in groups on the underside of cotton leaves (= aphid colonies). There
they...

plantwise.org

Neem extracts against whiteflies in beans


20167800150.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Neem extracts against whiteflies in beans
Recognize the problem
Whiteflies are tiny white winged insects of about 2mm. They usually sit on the
underside of leaves. They fly off when you shake the beans. Young whiteflies
are also white and sit underneath leaves, but do not move much. Young and
adult flies feed plant sap which causes yellow spots on bean leaves, and
weakens the...

plantwise.org

Oil and ash to protect grain barns from termites


20167800152.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Oil and ash to protect grain barns from termites
Recognize the problem
Termites (lumoma in Tonga) are ½ to 2 cm wingless insects and some are
even bigger. They have big heads with pincer-like mouthparts and a big
abdomen. Termites eat wooden structures so they can destroy grain barns.
They are also pests of various crops at almost all growth stages. In the case of
maize,...

plantwise.org

Sanitation to control mango seed weevil


20167800157.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Sanitation to control mango seed weevil
Recognize the problem
Mango seed weevil is an insect pest of mango. The weevils are less than 1 cm
brownish small beetles with a long nose. When weevils lay eggs early, meaning
on just forming fruits, then the feeding of the hatched small larvae leads to
premature fruit fall. If the attacks occur at a later stage, infested fruits are...

plantwise.org

Benefits of fertilizers in cotton production


20167800160.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Benefits of fertilizers in cotton production
Recognize the problem
Cotton (Butonje in Tonga) is grown without fertilisers by some farmers. The
lack of fertiliser prevents the plant from reaching the full variety height. It may
have fewer branches and fewer or smaller bolls. Plants may show stunted
growth over large areas of the field.
Background
Many farmers are only producing...

plantwise.org

Using Tithonia as a green manure in tomato


20167800165.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Zambia, July 2015
Using Tithonia as a green manure in tomato
Recognize the problem
Tomato requires a lot of fertilisation to yield well. The major nutrients are
potassium, phosphorous, nitrogen and calcium.
Background
Fertilisation of tomatoes is needed, but synthetic fertilizers increase the cost of
producing the crop. Other means of fertilization can help to reduce the costs.
For example,...

plantwise.org

Cabbage - club root


20177800159.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Cambodia, November 2014
Cabbage – Club root
Recognize the problem
Club root may develop extensively on plant roots before the first sign (an
abnormal wilting and yellowing of leaves, especially on warm days) is noticed
aboveground. If the soil is moist, these symptoms may not become apparent
until water stress occurs. When infection occurs at an early stage of growth,
young plants are stunted...

plantwise.org

Cabbage (crucifer) - black rot


20177800160.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Cambodia, November 2014
Cabbage (Crucifer) - Black rot
Recognize the problem
Plants can be infected during any growth stage. Two types of symptoms occur
depending on whether infection is systemic or local. Seedlings that are infected
systemically become yellow, drop their lower leaves, and may die. These symptoms
can resemble nutritional problems. Leaves may be affected on only one side of a...

plantwise.org

Sclerotinia rot of cabbages


Long bean pod borer


20177800162.jpg

FACTSHEETS FOR FARMERS
www.plantwise.orgCreated in Cambodia, November 2014
Long Bean Pod Borer
Recognize the problem
Crops may be infested from early budding onwards. The eggs are laid on or in
the flowers (inserted between the petals). Young larvae feed inside flowers for
5-7 days before moving to the pods when mid-sized. Favoured entry points are
where flowers and pods are touching. After completing their development (10-
15 days from egg...

plantwise.org

Papaya Mealybugs


Grey Leaf Spot on Tomato


Pages

Filter by crop name:

 

Filter by location: