Solution Management of fruit and vine rot of pointed gourd
Country India
Last update: 08/10/2006
Summary Fruit and vine rot of pointed gourd caused by Phytophthora cinnamomi which is popularly known as Haja is a serious disease of pointed gourd that results in huge loss of crop in case of severe infestation.In winter months, rise in atmospheric temperature accompanied by 2 to 3 showers favours the disease. The disease starts with sign of drying of upper side of the nodes and internodes, while the lower portion remains unaffected. But with the advance of disease the whole vine get affected. In monsoon period the severity of disease became higher with the rotting of fruits and vines. Sudden rainfall after a long dry spell or water stagnation in the field helps in spreading of the disease. Strict sanitary measures, good drainage facility, cultivation on scaffold, straw mulching and alternate spraying of metalaxyl + manxcozeb @ 2.5g/l of water and copper oxy chloride @ 4g/l of water can effectively check the disease.
forum discussion 
Contributed by person details Mr. Subhra Saikat Roy (CI, TeleSupport India)
Challenge/Issue Drying of vine is found in new planted crop during April - may following a heavy or light shower. Farmers popularly call it as dry or Sukno Haja. A few fruits have been found to be affected. Infection usually starts at the middle portion of the fruits which shrinks and dries up. If there is cloudy weather or rain or soil remains moist due to application of irrigation white mycellial growth develops in the infected portion.After starting of monsoon frequent rains and cloudy weather favours the spread of the disease, more and more vines and fruits get affected. Affected tissues become water soaked and discoloured. In all cases the affected area of the fruits is covered with white mycellial growth. During this phase stem infection is also found mainly in the nodal region. During rainy days oozing of sticky substances from diseased stem, leaf and fruit tissues are quite common which usually takes places before formation of mycellial growth.
Method Strict sanitary measures i.e. removal of diseased fruits and vines should be followed.

Proper scheduling of irrigation and good drainage facility should be ensured.

Straw mulching checks the spread of the disease to some extent.

Cultivation of pointed gourd on scaffold should be done.

Alternate spraying of metalaxyl + mancozeb @ 2.5g /l of water and copper oxy chloride @ 4g /l of water effectively checks the disease.

Spraying of fungicides just before sunset give good result.
Lessons learned Heavy shower after a hot dry spell, continues rainy days, stagnation of water in the field, poor sanitary condition has been identified as favourable condition for disease severity.

Crops grown on soil bed and ratoon crop suffered more as compared to crop raised on scaffold and newly planted crop.
List Keywords
1.1 Socio- economic Sector (OECD) 311 Agriculture
1.2 Institutional dimension Social- livelihood systems/ Gender
1.4 Target group(s) 6. General public/Opinion makers
3. Intermediary organisations
4. Research community
1. Local communities
2.1 Production System 1. Mono-culture
Irrigated system
2.2 Production Chain 3. Pest & Disease Control
2.3 Commodity group Food crops
2.5a Agro-Ecology: Thermal zone 2: Subtropics
2.5b Agro-ecology: Altitude zone Mid-altitude
2.5c Agro-Ecology: Moisture zone 2. Sub-humid
3.2 Pollution-Environmental Protection 8. Treatment & control
Telesupport Themes IPM
Stage Country Region Location
Apply India West Bengal NEW ALLUVIAL ZONE
Role Person name
Describer person details Mr. Subhra Saikat Roy
Role Organisation Acronym
Network Organisation organisation details TeleSupport India Network TeleSupport India
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