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 |
|
|
|
|
19.02.2025 |
33.1 |
13.8 |
95 |
24 |
6.5 |
2.02 |
0.0 |
Period: 1st to 15th February 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 |
||||
|
February (1-15) 2025 |
31.25 |
11.43 |
93.40 |
30.40 |
6.45 |
3.00 |
0.00 |
|
(30.79) |
(13.07) |
(78.86) |
(34.15) |
(5.38) |
(3.95) |
(0.00) |
|
* Figures in the parentheses indicate the mean values during the corresponding period for the previous 5 years
Fortnight from 1st to 15th February, 2025
During the first fortnight of the month i.e., 1st to 15th February 2025, the mean maximum temperature increased by 2.88ºC and mean minimum temperature decreased by 1.81ºC as compared to the previous fortnight. The mean maximum temperature increased by 1.94ºC and mean minimum temperature decreased 0.28ºC 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 0.16% and 18.73% respectively as compared to the previous fortnight. There was no rainfall recorded during this fortnight.
Crop weather situation
In this fortnight, maximum temperature is more than the average of previous five years and no rainfall has been received. Adequate irrigation with mulching to ensure better moisture availability is advised. Low moisture content in soil will reduce the availability of nutrients. Foliar spray of Arka Vegetable Special for vegetable crops. The active growth stage during the evening hours is suggested.
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 expected on mango. Spray Azadirachtin 10000 ppm @ 3 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.
- Addition of sticker is essential. Avoid spraying on full bloom to protect pollinators.
- For organic orchards, application of entomopathogen Metarhizium anisopliae formulation @ 5ml/L is recommended.
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.
Mango Fruit Borer
- Collect the fallen fruits at regular intervals and destroy or bury them in a pit
- First spray has to be given when fruits are at lemon size with any one of the insecticides viz., Lambda cyhalothrin 5EC @1ml/l or indoxacarb 14.5SC@ 0.75ml/l or spinetoram 11.7SC @ 1.25ml/l. This has to be followed by second spray after 12-15 days with a botanical pesticide, azadirachtin 10000ppm @2ml/l or IIHR neem soap @10g/l.
- In case of orchards following organic /non chemical farming , first spray can be taken up with either Bt@1ml or Azadirachtin 1% @2ml/l.
Banana skipper
- Skipper butterfly is becoming is 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 20EC @ 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 indoxacarb 14.5 SC @ 0.75ml/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
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
Midge on chillies:
- Severe incidence of midges is observed on chilli which causes maximum damage at flowering stage. Spray thiamethoxam 25 WG @ 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 15 days 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 are approved by CIBRC except isocyloseram
*CIBRC label claim available
Mites on Chilli
- For their management spray spiromesfin 22.9 SC @ 1 ml/l or fenazaquin 10 EC@ 3 g/L.
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 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 first fortnight of February, 2025.
Vegetable crops:
Chilli:
- Severity of Chilli leaf curl disease transmitted by whitefly insect vector increases. Give foliar spray of Arka Vegetable Special @ 5g/L (a micronutrient formulation) followed by separate foliar spray of Sagarika (Sea weed extract-IFFCO) @ 2ml per litre to enhance disease tolerance.
Fruit Crops
Mango
- Powdery mildew requires attention. At this point of time application of wettable suphur is not advisable because of high temperature. Application of Hexaconazole 5%EC @ 1ml per litre is recommended for the disease management.
Papaya
- To manage vectors of Papaya ring spot disease (Papaya ring spot virus) spray neem oil @2ml/l. To enhance tolerance against the disease give Foliar spray of Sagarika (Seaweed extract-IFFCO) @ 2.0ml/L along
Flower and Medicinal Crops
Ornamentals
- For brown rust management give preventive spray with Chlorothalonil 75% WP 0.2% followed by curative spray with Propiconazole 25EC at 1ml/L.
