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Bean rust management


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
September
2012
Bean rust management
Recognize the problem
Bean rust is a fungal disease affecting leaves, pods and stems of snap beans (=green
beans, French beans) and common beans. This disease can reduce yields up to 30%.
The symptoms are rust-coloured spots within yellowed areas. The spots first appear as
small brown dots containing a brown powder, which are spores of...

plantwise.org

Come together to mass trap Mango fruit fly


20127802225.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
September
2012
Come together to mass trap Mango fruit fly
Recognize the problem
Mango fruit flies ("Vidudu" in Swahili) inject their eggs into young fruits. The
eggs hatch into larvae that grow and eat inside the fruit. You cannot control
them with chemicals because larvae are hidden inside fruit. The larvae cause
the fruit to rot and the fruit drops down before ripening....

plantwise.org

Rice yellow mottle (Ikivejuru)


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Rwanda
,
May
2012
Rice yellow mottle (Ikivejuru)
Recognize the problem
Rice plants infected with Rice Yellow Mottle (also called RYMV or
Ikivejuru
in
Kinyarwanda) have a yellowish streaking of leaves, are smaller than normal
and have fewer tillers. The panicle does not emerge from the sheath and is of
a bad shape, if it emerges, and with small and usually empty spikelet....

plantwise.org

Maize Stalk Borer (Nkongwa)


20127801768.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Rwanda
,
May
2012
Maize Stalk Borer (Nkongwa)
Recognize the problem
Maize stalk borer also known as Nkongwa in Kinyarwanda is an insect which
attacks maize. It makes holes on the leaves and moves into the stem. You can
often see lumps of chewed plant material (frass) left by the insect. The leaves
turn yellow and the plant dries. The plant might not grow to full size.
Sometimes...

plantwise.org

Striga


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Rwanda
,
May
2012
Striga
Recognize the problem
Striga known as "Rwona" or "Kurisuka" in Kinyarwanda is a parasitic weed of
different cereal species such as maize and sorghum, and grasses. Striga plants
produce typical purple ('umwura' in Kinyarwanda) flowers while its leaves are
narrow and long with an intense green colour.
Background
Striga seeds in the soil germinate only when host...

plantwise.org

Cassava mosaic disease


20127801773.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
December
2006
Cassava mosaic disease
Recognize the problem
Cassava mosaic disease is commonly known as leprosy. Sick plants have pale
green and yellowish patches on the leaves.
The sick plants are often small. They do not grow to their normal height. Sick
plants have small leaves and small tubers so the harvest is poor.
Background
Cassava mosaic disease is caused by a...

plantwise.org

Attracting snails away from garden plants


20127801281.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Attracting snails away from garden plants
Recognize the problem
Snails are pests that move very slowly and carry their house (a shell) on their
back. They eat the leaves of many plants. They make holes in the leaves and
often leave a trail of clear slime where they have moved over the leaf or
ground.
Background
Because snails move very slowly, it is easy to...

plantwise.org

Avoiding leeches in rice paddies


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FACTSHEETS FOR FARMERS www.plantwise.org Created in Sierra Leone , May 2012 Avoiding leeches in rice paddies Recognize the problem Leeches are almost always found in water, usually near the surface. To eat, they stick to the body of an animal (including people), make a small cut in the skin with their mouth and then drink the blood. They can be very common in swamps used for growing rice. When there are very many leeches in rice paddies, they...

plantwise.org

Black pod disease of cacao


20127801283.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
(Revised September 2015)
Black pod disease of cacao
Recognize the problem
The disease affects cacao pods at all stages and the young shoots of newly
planted trees. The diseased young shoots may die. If the pods become
diseased, a yellowish spot will appear, which leads to little brown spots. Within
7-10 days, the brownish spots extend and change to a darker...

plantwise.org

Control of cowpea pod borer


20127801284.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Control of cowpea pod borer
Recognize the problem
Cowpea pod borer is an insect that causes damage to flowers, leaves and pods
of cowpea. Leaves are folded and stuck together by the caterpillar ("tumbu").
You can see small holes chewed into the pods by the insect. It is very common
to see many small, yellow or brown balls stuck to the sides of a damaged pod....

plantwise.org

Controlling weeds in upland rice


20127801286.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Controlling weeds in upland rice
Recognize the problem
Weeds are unwanted plants growing among the rice plants. Some are similar to
the rice plant and others are different (they may have broad leaves). Weeds
grow faster than the rice. The weeds compete with the rice plants for nutrients,
water and sunlight and also act as a host for other pests and diseases....

plantwise.org

Green muscle for grasshoppers


20127801288.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Green Muscle for grasshoppers
Recognize the problem
The variegated grasshopper is a serious pest of many common crops. It feeds
primarily on the leaves of plants, but will even eat the skin of the stem. The
variegated grasshopper is recognised by the bright yellow colours on its body.
When it is much older and larger, it becomes mostly green and bright yellow...

plantwise.org

Local spray apparatus


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Local spray apparatus
Recognize the problem
A knapsack sprayer is not always available when spraying is needed. It might
be broken or someone else might be using it. If the crop is being damaged and
other management options have not worked the crop should be sprayed. It
might not be possible to wait until the knapsack sprayer is ready.
Background
A tutik...

plantwise.org

Preventing weeds in cassava


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Preventing weeds in cassava
Recognize the problem
Weeds are unwanted plants that affect the growth of cassava and reduce the
crop yield. Weeds compete with cassava for nutrients, water, space, light and
soil moisture. They give protection and food for crop pests, which makes the
number of pests increase.
Background
Weeds need light to be able to grow. They...

plantwise.org

Protecting cereal crops from birds


20127801294.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Protecting cereal crops from birds
Recognize the problem
Birds cause serious damage to cereal crops such as sorghum, maize and millet.
Their damage can be identified by empty spaces in the farm where birds have
eaten seeds before they can grow. Grains on the seed heads or cobs may be
half-filled or empty. Early seeds may be damaged by birds piercing the seed...

plantwise.org

Protecting okra seeds from cotton stainer


20127801295.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
May
2012
Protecting okra seeds from cotton stainer
Recognize the problem
Adult cotton stainers have brown and black backs with two black spots. They
have red and white stripes on the body underneath. Young cotton strainers
have red and white stripes all over the body. These insects may feed for
several days on okra plants, leaving black spots on the dry pods....

plantwise.org

Mealy bug management in coffee


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
October
2012
Mealy bug management in coffee
Recognize the problem
Coffee mealy bugs, also called Kenya mealy bugs, are pests of coffee. The pest attacks
both Arabica and Robusta coffee. These small oval and flattened insects are just big
enough to be seen by eyes (2.5 mm long and 1.5 mm wide). Their body is whitish-
yellowish and segmented, but this is not easily seen as...

plantwise.org

Trapping mice with water buckets in maize fields


20137803403.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
October
2012
Trapping mice with water buckets in maize fields
Recognize the problem
Rats and mice ("Panya pori" in Swahili) are small animals that can cause
considerable damage to the maize cobs and plants. They eat the maize cobs,
making the maize of poor quality. Up to 90% of maize yield can be lost at high
rat and mice infestations.
Background
Rats and mice have high...

plantwise.org

Root knot nematodes in tomatoes


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
October
2012
Root knot nematodes in tomatoes
Recognize the problem
Root knot nematodes ("Minyoo fundo" in Swahili) are very small worms that cannot be
seen with the naked eye. The worms infect the roots causing numerous pearl-like
swellings (galls) on roots. Infected plants appear entirely weakened, may become
yellowed and/or remain small. They respond poorly to fertiliser...

plantwise.org

Thrips management in tomatoes


20137803410.jpg

FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
October
2012
Thrips management in tomatoes
Recognize the problem
Thrips ("Vithiripi" in Swahili) are very small and thin insect pests (1.5 mm
long). They are light grey-greenish, but difficult to see. Thrips cause tiny scars
on leaves and fruits. Damaged leaves become papery and may curl and drop
prematurely. Thrips usually attack during the flowering stage of tomatoes....

plantwise.org

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