Sample Heading

Sample Heading

IIHR weather report

Primary tabs

 

CROP WEATHER SITUATION

METEOROLOGICAL DATA OF

ICAR-INDIAN INSTITUTE OF HORTICULTURAL RESEARCH

HESSARAGHATTA LAKE P.O., BANGALORE – 560 089

 

Period: 16th to 31st December, 2018

Latitude: 13071 N                   Longitude: 770 291E              Altitude: 890 M

 

Fortnight

Temperature (0C)

Relative Humidity (%)

 

Evaporation

(mm)

 

Wind speed

(km/h)

 

Total Rainfall

(mm)

Average

Max.

Average

Min.

Average

at 7.30AM

Average at 1.30PM

December

16th to 31st,

2018

28.5

14.2

81.7

48.4

3.9

2.4

0.00

(28.0)

(16.5)

(74.6)

( 45.3)

(3.8)

(3.3)

(0.0)

 

 

* Figures in the parentheses indicate the average values during the corresponding period for the previous 5 years

Fortnight from 16th to 31st December, 2018

 

During the second fortnight of the month i.e., from December 16th to 31st, 2018, the average maximum and minimum temperatures were lower by 0.50C and 2.00C respectively, as compared to the previous fortnight. The average maximum temperature was higher by 1.30C and minimum temperature was lower by 1.40C, respectively, as compared to the average values of the corresponding period for the previous five years. The percent relative humidity during morning and afternoon were lower by 2.6% and 1.6%, as compared to the previous fortnight. There was no rainfall during the fortnight. Crop weather situation

During the second fortnight of the month i.e., from December 16th to 31st, 2018 rainfall was nearly same as the average value of previous 5 years, though temperatures are marginally lesser than the previous 5 year’s average. Supplemental irrigation may be given to crop like banana. Under sufficient soil moisture available in field, additional fertilizer may be taken up if required.   All other routine cultural practices may be followed. The climate during the second fortnight of December was highly suitable for the cultivation of Oyster Mushroom (Pleurotus spp.), King oyster mushroom and Shiitake mushroom. The quality of oyster mushrooms during this period was of very good quality having compact bunches, dark sporophores, short and thick stipe and pileus with better shelf life. Milky mushroom in this climate was slow to grow and took very long (more than 20 days) for sporophore induction.Incidence of pests and diseases

Under the prevailing weather conditions, the following pests are expected in Bangalore on various horticultural crops.  Pest incidence was noticed during the first fortnight of May and their management options are mentioned below.

Fruit Crops

Mango

Leaf webber problem is noticed. Removal of the effected shoots and spraying of lambda cyhalothrin 0.6 ml/l is recommended. Incidence of leaf hoppers is noticed in mango inflorescence. Spraying of imidachloprid 0.5 ml/l is recommended.

Custard Apple

In new flushes from pruned trees incidence of tea mosquito bug is noticed. Spraying of imidachloprid 0.5 ml/l or lambda cyhalothrin (0.003%)/ is recommended.

Cabbage

Incidence of diamond back moth is noticed. Spraying with the diafenthiuran 0.5gm/l) is recommended.

Tomato

Incidence of Tuta absoluta is noticed under polyhouse conditions.  Spray spinosad 45 SC @ 0.25 ml/l

Brinjal

The incidence of brinjal shoot and fruit borer can be expected. Spraying of [email protected] ml/l or [email protected] ml/l is recommended.

Bitter gourd

Incidence of aphides is noticed and spraying of thiamethoxam 0.3gm/l is recommended.

Chilli

Thrips damage was noticed in the field.  Spray imidacloprid @ 0.5 ml/l.

Gerbera

Under polyhouse conditions thrips incidence is more. Spray [email protected]/l.

Rose

Thrips incidence is noticed on rose under polyhouse condition.  Spray Fipronil 5 SC @ 1.5 ml/l. If the problem persists after one week also, sprays pinosad 45 SC @ 0.25 ml/l.

*Safe waiting periods are to be followed as per the label claims.

Disease Scenario

Disease forecast based on weather parameters during the second fortnight of December, 2018.

Fruit Crops

Mango

Powdery mildew requires attention. At this point of time application of wettable suphur (0.2%) along with sticker @ 0.5 ml/L is recommended. Wettable Sulphur should not be applied if the temperature is higher. Anthracnose spots may increase on foliage. Application of Chlorothalonil (0.2%) or Thiophanate methyl (0.2%) or Carbendazim (0.1%) along with sticker (@ 0.5 ml / L) is recommended for the disease management.

Grape

Downy mildew and anthracnose are important diseases in this period. For the management of downy mildew application of Metalyxl + Mancozeb (0.2%)/ Al Fosetyl (0.2%)/ Dimethomorph (0.8%) + Mancozeb (0.2%) and for anthracnose spraying with Propineb (0.2%)/ Chlorothalonil (0.2%)/ Carbendazim (0.1%)/ Thiophanate methyl (0.1%) are effective.

Banana

Sigatoka leaf spot (Mycospheralla sp.), crown rot (Fusarium moniliforme & Botryodiplodia theobromae) and anthracnose (Colletotrichum musae) of fruits require proper attention. Sigatoka could be managed by spraying Carbendazim (0.1%) or Thiophanate methyl (0.1%) or Tridemorph (0.1%)/ whereas crown rot and anthracnose could be controlled by the pre-harvest sprays involving Carbendazim (0.1%) or Thiophanate methyl (0.1%), besides post harvest dip in Chlorine water (300 ppm) for 10 minutes.

Pomegranate

Intensity of leaf and fruit spot disease caused by Pseudocercospora punicae and anthracnose of fruit and leaf (C. gloeosporioides) may remain moderate. Application of Chlorothalonil (0.2%) /Antracol (0.2%)/ Carbendazim (0.1%)/ Thiophanate methyl (0.1%)/ Hexaconazole (0.1%) along with the sticker @ 0.5ml/l is effective for the disease control.

Papaya

Infection of Black spot (Asperisporium caricae) is increasing. Application of Chlorothalonil (0.2%) Carbendazim (0.1%)/ Thiophanate methyl (0.1%)/ Hexaconazole (0.1%) along with the sticker @ 0.5ml/l with good coverage of the lower surface of the foliage is recommended.

Vegetable crops

Solanaceous vegetables

Powdery mildew requires attention. At this point of time application of wettable suphur (0.2%) along with sticker @ 0.5 ml/L is recommended. Leafspots and Anthracnose spots may increase on foliage. Application of Chlorothalonil (0.2%) along with sticker (@ 0.5 ml / L) is recommended for the disease management.

Cucurbits vegetables

Powdery mildew may become problem.  Application of chlorothalonil (0.2%) as preventive spray and tebuconazole (0.1%) at severe stages may help.  For the downy mildews spray of ridomil 0.1% will help.

Ornamental crops

Chrysnthemum

This is the time for rust and spraying chlorothalonil at 2g/l will prevent the disease incidence.  While propiconazole at 0.1% will help as curative measure.

Rose

Powdery mildew of rose in polyhouse as well as filed grown crops will increase.  Tebuconazole or hexaconazole (at 0.1%) or azoxystrobine at 0.05% would reduce the disease severity.

Undefined