IIHR WEATHER REPORT AND CROP ADVISORIES
METEOROLOGICAL DATA OF
ICAR-INDIAN INSTITUTE OF HORTICULTURAL RESEARCH
HESSARAGHATTA LAKE P.O., BANGALORE – 560 089
Latitude : 13o 7’ N Longitude: 77o29’ E Altitude: 890 M
Date |
Temperature |
Relative Humidity |
Evaporation |
Wind speed |
Rainfall |
||
- |
oC |
% |
mm |
km/h |
mm |
||
|
Mean Max. |
Mean Min. |
Mean At 8.30 am |
Mean At 1.30 pm |
|
|
|
16.02.2025 |
32.3 |
12.4 |
90 |
31 |
6.0 |
4.93 |
0.0 |
Period: 16th to 31st January 2025
Latitude : 13071 N Longitude : 720291E Altitude : 890 M
Fortnight |
Temperature (0C) |
Relative Humidity (%) |
Evaporation (mm) |
Wind speed (km/h) |
Total Rainfall (mm) |
||
Mean Max. |
Mean Min. |
Mean At 7.30AM |
Mean at 1.30 PM |
||||
January (16-31) 2025 |
28.37 |
13.24 |
93.56 |
49.13 |
4.57 |
2.42 |
3.00 |
(28.85) |
(13.35) |
(84.93) |
(45.08) |
(3.98) |
(3.56) |
(0.00) |
* Figures in the parentheses indicate the mean values during the corresponding period for the previous 5 years
Fortnight from 16th to 31st January, 2025
During the second fortnight of the month i.e., 16th to 31st January 2025, the mean maximum temperature increased by 0.97ºC and mean minimum temperature decreased by 0.56ºC as compared to the previous fortnight. The mean maximum temperature increased by 1.01ºC and mean minimum temperature decreased by 1.63ºC as compared to the mean values of the corresponding period for the previous five years. The percent relative humidity in the morning and afternoon decreased by 0.11% and 6.54% respectively as compared to the previous fortnight. The rainfall recorded during this fortnight, was 3.00 mm
Crop weather situation
Average evaporation rate is higher than the average values of previous 5 years. Basins of tree crops may be covered with available mulches to reduce evaporation and conserve moisture. Application of organic manures along with irrigation will increase the availability of nutrients to crops like mango. Mango special application through foliar spraying is recommended during this period.
Incidence of insect pests
Under the prevailing weather situation, following pests are expected under Bangalore conditions on various horticultural crops. Various management options for their management are mentioned below.
Hoppers on mango:
- Incidence of hoppers is observed on mango. Spray Azadirachtin 3000 ppm @ 2 ml/l, if the hopper population is low to moderate. If the number exceeds 4 per panicle spray with *imidacloprid 17.8 SL @ 0.5 ml/l or *oxydemeton – methyl 25% EC @ 2 ml/l or *dimethoate 30% EC @ 2ml/litre at early panicle emergence.
Flower webbers/inflorescence caterpillars on mango
- Besides hoppers, inflorescence caterpillars which web the flowers and feed inside are potential pests on mango during January. Application of lambda cyhalothrin 5EC @ 0.5ml/L or cypermethrin 25 EC @1ml/L are useful to control the pest.
Banana skipper
- Skipper butterfly is becoming a serious pest on banana. The larva rolls the leaves and feeds by remaining inside. Affected leaves to be mechanically removed and destroyed. In case of severe infestation, spraying of quinolphos 25EC @ 2ml/L or chlorpyrifos 20 EC @ 2.5ml/L is advised.
Tomato fruit borer:
- With the prevailing weather, incidence of tomato fruit borer may increase on tomato. For its management, spray HaNPV @ 250 LE/ha during evening hours or spray *flubendiamide 20 WG @0.2g/l, *indoxacarb14.5SC @ 0.5ml/l, if the incidence is very high. Proper waiting periods are to be followed before harvest of tomatoes.
Tomato moth
- Install tuta pheromone traps for monitoring of the adults @ 4-6 traps/acre
- Spray indoxacarb 14.5 SC @ 0.75 ml/litre or spinosad 45 SC @ 0.3ml/l
Midge on chillies:
- Severe incidence of midges is observed on chilli which causes maximum damage at flowering stage. Spray thiamethoxam25WG @ 0.3 g/l for their management.
Thrips parvispisnus on chilli
- Black thrips incidence is increasing on chilli and capsicum; it is advised to farmers to raise seedlings under nylon mesh thrips proof conditions, use thrips free seedlings
- Barrier crop: sow maize all along the border 30 days before chilli transplantation
- Root dipping of the seedlings in imidacloprid 17.8 SL solution @ 0.5 ml per litre of water for one hour during transplanting
- After planting: regular alternate weekly spraying of imidacloprid 17.8 SL 0.5ml/litre+ neem oil 2.5ml/litre, fipronil80WG@40g/acre, Fipronil 40%+ imidaclorpid40%@40g/acre, Cyantraniliprole10OD@240ml/acre, acetamiprid20SP@40g/acre, spirotetramat150 OD@160ml/acre, pongamia oil 2.5ml/litre
or
- Spray twice @ minimum 15 days interval in a crop cycle Isocycloseram 9.2% (w/w DC) + Isocycloseram10% (w/v DC) * @ 1.2ml/liter
- Every 15days interval (depending upon the outbreak) chlropyrifos 50EC (2.5ml/l) soil drenching is required to kill pupa that are in soil.
- Note: none of these chemicals approved by CIBRC except isocyloseram
*CIBRC label claim available
Aphids on cucurbits
- Aphid infestation may increase on different cucurbits. Spray imidacloprid 200 SL @ 0.5 ml/l or thiamethoxam 25 WG @ 0.3 g/l for their management.
Aphids on Beans and rose
- Aphids incidence is observed on beans and rose. Thoroughly spray neem soap or Pongamia soap (1 %) or pulverised neem seed powder extract (NSPE) 4 % for their management
Thrips on rose
- For the management of thrips on rose, spray fipronil 5 SC @ 1.5 ml/litre or imidacloprid 200 SL @ 0.5 ml/l
Mites on tomato
- Incidence of mites is observed and may increase on tomato. For their management spray spiromesfin 22.9 SC @ 1 ml/l or fenazaquin 10 EC@ 3 g/L.
Mites on Rose
- During the period, incidence of mites is observed heavily on roses grown under polyhouse conditions. Spray spiromesfin 22.9 SC @ 1 ml/l for their management
*CIBRC approved, others not in the CIBRC list are based on reports
Disclaimer: Wherever label claim not available, recommendations are made based on experimental results
Disease scenario
Disease scenario in relation to the weather data during second fortnight of January, 2025.
Fruit Crops
Banana
- Sigatoka leaf spot severity increases under prevailing conditions. Sigatoka could be managed by foliar spray with propiconazole25%EC @1ml/L or Mancozeb 63% + Carbendazim 12% WP @2g/L along with sticker @ 0.5 ml/L
Mango
- Powdery mildew requires attention. Application of Hexaconazole 5%EC @1ml/L is recommended for the disease management along with sticker @ 0.5 ml/ L.
Papaya
- Powdery mildew (Oidium caricae) infection may be noticed. Foliar application of thiophanate methyl 70%WP @1ml/L along with the sticker @ 0.5ml/L is recommended.