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Panicle rice mites


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Vietnam
,
June
2013
Panicle Rice Mites
Recognize the problem
The panicle rice mite (PRM) feeds on rice from seedling to grain maturity. PRM
infests panicles, leaf veins and leaf sheaths (and so is also sometimes known
as rice sheath mite). Feeding takes place behind the leaf sheath. The feeding
lesion can be detected by purple-brown discoloration of the leaf sheath.
When a new leaf...

plantwise.org

Management of birds in rice fields


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sierra Leone
,
September
2013
Management of birds in rice fields
Recognize the problem
In Sierra Leone, birds, especially the weaver birds and sparrows, are
recognised as troublesome animals that cause serious damage to rice plants.
Birds damage rice from the time of planting the seeds in the field to
maturation. The entire crop field can be spoilt if the population of birds grows....

plantwise.org

Short rice varieties against stalk-eyed shoot fly


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
September
2013
Short rice varieties against stalk-eyed shoot fly
Recognize the problem
Stalk-eyed shoot flies, also called stalk-eyed borers or
Nzi wa virungu
in
Kiswahili, are small (less than 1 cm) brown insects. Their eyes are found on
two long stalks coming out from their head. The larvae of the flies feed inside
the leaves of seedlings and young rice plants. The...

plantwise.org

Resistant rice against rice yellow mottle virus


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
September
2013
Resistant rice against rice yellow mottle virus
Recognize the problem
Rice yellow mottle virus is a disease of rice. Affected plants have yellow or
orange leaves at the early stage of the crop. In severe cases, leaves roll up and
dry. Other symptoms are stunting, reduced tillering and poor panicle filling.
This results in low or no seed production and poor...

plantwise.org

Management of bacterial leaf blight of rice


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Nepal
,
September
2013
Management of bacterial leaf blight of rice
Recognize the problem
Bacterial blight is one of the most serious diseases of rice in the Terai region of
Nepal. However, it may also affect rice crops in the valley and mid hills. Wilting
of seedlings in early stage (kresek) and foliar blight can cause yield losses of
80-85%
and
30%
respectively.
Yellowish...

plantwise.org

Management or rice leaf folder


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Nepal
,
September
2013
Management of rice leaf folder
Recognize the problem
The adult rice leaf folder is a yellow-brown moth. Leaf folder caterpillars fold
the rice leaves around themselves and attach to the leaf margins. Each female
lays around 300 eggs at night, during a lifecycle of 3 to 10 days. Larvae are
yellow and about 12 - 25 mm long. As they mature, they turn yellowish...

plantwise.org

Integrated rodent management in rice field


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Sri Lanka
,
October
2013
Integrated Rodent Management in rice field
Recognize the problem
Rice field rats are becoming an important pest due to the damage they cause
to rice plants and because they act as a vector for Leptospirosis disease. More
than
63%
of Leptospirosis cases are rice farmers.
In rural rice fields, rat damage can reach up to
30%
loss.
Background
Due to the...

plantwise.org

Helminthosporiosis in rice


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Bolivia
,
July
2012
Helminthosporiosis in rice
Recognize the problem
This is one of the most important diseases affecting rice. It can attack in any
stage of development, but the damage is worse at the end of the cycle
because it drastically decreases the yield and the quality.
It looks like coal. Small oval brown spots with a grey center appear on the
leaves. Strong attacks can make...

plantwise.org

Brown plant hopper of rice


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Bangladesh
,
August
2012
Brown plant hopper of rice
Recognize the problem
The brown plant hopper is the most damaging insect in rice cultivation in Bangladesh.
It is so damaging that sometimes the whole rice field is lost. The brown plant hopper is
a tiny insect, which some farmers do not notice, even though their rice plants are
covered in it.
The brown plant hopper normally attacks...

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

Controlling weeds in upland rice


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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

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

Direct seeding of rice


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Pakistan
,
December
2012
Direct seeding of rice
Recognize the problem
Conventional rice sowing is difficult and yield is reduced because of:

a shortage of irrigation water

not enough labour at the time of transplanting

not maintaining the recommended plant population (80,000 plants/acre)

electricity shortage and high fuel prices
Background
Direct seeding is becoming...

plantwise.org

Leptochloa chinensis - A serious weed of rice


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Pakistan
,
December
2012
Leptochloa chinensis- A serious weed of rice
Recognize the problem
Its common name is Lamb grass or Jangli grass. It is also found in India,
Bangladesh and Sri Lanka. It is a tufted, smooth grass that reaches up to the
height of your chest. It has a slender, hollow, erect stem growing up from a
branching base. The stem is smooth and hairless.
Background
This...

plantwise.org

Rice damping off


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Afghanistan
,
October
2012
Rice Damping off
Recognize the problem
This is a soil borne fungal disease and can be recognized by the presence of a
cottony or fine thread-like growth on the surface of the seed before or after its
emergence at early stages. In severe cases the entire seed is covered by a
cottony mass and no germination takes place.
Background
The disease is caused by...

plantwise.org

Attract ants against white stem borer in coffee


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Tanzania
,
November
2012
Attract ants against white stem borer in coffee
Recognize the problem
African coffee white stem borers (CWB) are dark-grey and white-grey beetles
up to
3
cm long with long dark antennae. Adult beetles are difficult to find, but
can sometimes be seen on young leaves and green twigs.
The
2
to
3
cm long pencil-thick young, called larvae, are white-...

plantwise.org

Thrip management in rice


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Cambodia
,
November
2012
Thrip management in rice
Recognize the problem
Thrips are tiny cigar-shaped insects with thin bodies and short legs. The adults
are dark brown in colour while the young are paler. Thrips normally hide
underneath unopened leaves and suck nutrients from the leaf. The feeding
causes small silver marks or yellow patches on the leaf and stems. Heavy
feeding...

plantwise.org

Southern rice black-streaked dwarf virus


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Vietnam
,
November
2012
Southern Rice Black-Streaked Dwarf Virus
Recognize the problem
Generally, the diseased paddy plants are dwarfed (stunted), with dark green
leaves. Diseased leaves can be twisted just at the tip or along the entire leaf.
Leaf veins have galls on the underside. Major veins on the sheath of immature
plants are also swollen.
From booting stage, diseased plants...

plantwise.org

Biocontrol of rice stem borer


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FACTSHEETS FOR FARMERS www.plantwise.org Created in Nepal , September 2012 Biocontrol of Rice Stem borer Recognize the problem The rice stem borer is a moth and its larva feeds on the stem around the node causing the stem to break. The adult moth is about 1.2-1.9 cm long. It lays its eggs on the lower surface of the rice leaves. Newly hatched larvae eat into the stems and cause the central shoots of tillers to dry up. Ears become white with...

plantwise.org

Management of brown planthopper in rice


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FACTSHEETS FOR FARMERS
www.plantwise.org
Created in
Nepal
,
September
2012
Management of Brown Planthopper in rice
Recognize the problem
The brown planthopper (BPH) is an insect pest of rice in Terai. BPH is a small
brown insect found mainly on the base of rice plants above the water level.
Adults and young suck the plant sap from leaf sheathes, causing yellowing of
lower and then upper leaves. Whole areas can die in patches which are...

plantwise.org

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