Crop Protection with vernacular Names
Crop Protection with vernacular Names
Contributed by issacfinny2000 on Tue, 2013-08-06 10:49
This weevil is a localized pest in the rice area around Rajpura. However this pest has also been observed in some other areas in the state.Its white ,legless grubsfeed on roots in the soil from July to September.The attacked plants turn yellow , stunted and produce only a few tillers .
Control : Apply any of the following granular pesticides in standing water: 3kg of Thimet/Foratox 10G(phorate) per acre
File Courtesy:
Package of practices for crops of Punjab- PAU Ludhiana
Contributed by arunswarnaraj on Wed, 2013-01-02 11:19
வேளாண்மை உதவி இயக்குநர் ராஜசேகர் விவசாயிகளுக்கு வெளியிட்டுள்ள அறிக்கையில் கூறி இருப்பதாவது நெல்லை மாவட்டம் கடையம் வட்டாரத்தில் பரவலாக நடவு செய்யப்பட்டுள்ள நெற்பயிரில் இலைச்சுருட்டுப்புழுக்களின் தாக்குதல் அதிகமாக காணப்படும். பெத்தான்பிள்ளைகுடியிருப்பு, சம்பன்குளம், ஆம்பூர் பகுதிகளில் சாகுபடி செய்துள்ள சாவித்திரி நெல் பயிரில் இலைசுருட்டுப்புழு தாக்குதல் அதிகம் காணப்படுகிறது.
இப்பூச்சிகள் பெரும்பாலும் இரவு நேரங்களில் காணப்படுகிறது. மழை குறைவாகவும், மேகமூட்டமாக இருக்கும் சூழலில் இவற்றின் தாக்குதல் அதிகமாக இருக்கும். தாய் அந்துப் பூச்சிகள் வெளிரிய பழுப்பு நிறத்தில் பளபளக்கும் மஞ்சள் கலந்த பழுப்பு நிற இறக்கையுடன் காணப்படும்.
வயல்கள் மற்றும் வரப்புகளில் உள்ள புற்களை நீக்கி வயலைச் சுத்தமாக வைத்திட வேண்டும். அதிகமாக தழைச்சத்து அதாவது யூரியா போட்ட வயல்கள், குருனை மருந்தான போரேட், கார்போபியூரான் போடப்பட்ட வயல்களில் பாதிப்பு அதிகமாக காணப்படும். நிழல் உள்ள இடங்களில் மற்றும் பயிர் நெருக்கமாக அதிக தழைச்சத்து பெற்று வளமாக இருக்கும் இடங்களில் முதலில் தாக்குதல் தென்படும் தழைச்சத்து ஒரு ஏக்கருக்கு 25 கிலோவுடன் 35 கிலோ பொட்டாஷ் உரத்தை இரு தடவையாக பிரித்து இடவேண்டம். மேலும் ஒரு ஏக்கருக்கு டிரைக்கோ கிரம்மா கைலோனிஸ் ஓட்டுண்ணியை 5சிசி என்ற அளவில் வாரம் ஒரு முறை வயலில் உலவ விட்டால் இப்பூச்சி தாக்குதலை கட்டுப்படுத்தலாம்.
பூச்சி மருந்தை காலை அல்லது மாலை வேளைகளில் வயலில் நீரை நன்கு வடித்துவிட்டு ஒரே மருந்தை திரும்ப திரும்ப தெளிக்காமல் மருந்துகளை சுழற்சி முறையில் அடித்து பூச்சிகளை தடுக்கலாம். இவ்வாறு அவர் தெரிவித்துள்ளார்.
Source: http://www.dinamalar.com/News_Detail.asp?Id=618316 (as on Jan 2, 2013)
For more information in English- Click Here
Contributed by rkmp.drr on Tue, 2011-11-01 14:34
Grain Discolouration:
Symptoms:
Contributed by rkmp.drr on Tue, 2011-11-01 14:27
Rice Tungro Virus: RTV
Causal Organism: The virus is transmitted by the Green leaf hopper N. virescens and N. niggropictus.
Symptoms:
- The diseased plants exibit orange yellow discolouration of leaves from the tip downwards.
- The young leaves show mosaic mottling. The plants are dwarfed with poor tillering and become sterile.
Control:
Contributed by rkmp.drr on Tue, 2011-11-01 14:24
Sheath Rot
Casual Organism: Saracladium Oryzae
Symptoms:
Contributed by rkmp.drr on Tue, 2011-11-01 14:21
Sheath Blight
Casual Organism: Rhizoctonia Solani
Symptoms:
Contributed by rkmp.drr on Tue, 2011-11-01 14:16
Brown Spot
Casual Organism: Helminthosporium Oryzae
Symptoms:
- The leaves show oval shaped foliar spots with yellow halo.Severely affected field presents a reddish appearance.
- Grain become discoloured.
Control:
Contributed by rkmp.drr on Tue, 2011-11-01 14:11
Blast
Casual Organism : Pyricularia Grisera
Symptoms:
The leaves show spindle shaped spots with grey centre and dark brown margin.
The lesions enlarge and cause drying of leaves. The nodes and neck regions turn black and cause rotting and breaking with complete/partial chaffiness of earhead.
Contributed by rkmp.drr on Tue, 2011-11-01 14:09
Management of Snails and Rats
(a) Snails:
(1) Effective control of snails to collect their eggs and dip in 10% salt solution.
(2) To kill the snails apply Carbofuron 3G @ 25 Kg/ha.
(b) Rats:
(1) Aluminium Phosphoric – keep 3 gm pillets in each live burrow and close the hole with mud.
(2) Zinc Phosphoid – Mix 1 gm Zinc Phosphoid with 40 parts edible flour + linseed oil and make 5 gm pillets as bait.
(3) Bromodiolon : Keep 15-20 gm poisonous bait in each burrow.
Contributed by rkmp.drr on Tue, 2011-11-01 14:06
Rice Hispa
Symptoms of damage:
1. The adult beetles feed on the epidermal tissue of the leaves and the grubs mine the leaf tissue and pupate there.
2. The beetles scrape the chlorophyll between the veins of the lamina resulting in whitish parallel streaks. Later, owing to indiscriminate feeding even on leaf veins, white blotches appear on leaves.
3. In severe epidemics leaves dry up and the crop presents a scorched appearance.
Contributed by rkmp.drr on Tue, 2011-11-01 14:02
Brown & Green Hopper
Symptoms of damage:
1. The leafhoppers attack all the stages of the plant. Both adults and nymphs cause direct damage by sucking plant sap leading to stunted growth and reduced tillering.
2. At high population levels their feeding results in the drying of the plants and the infested paddy fields appear blighted. Infestation at the time of panicle emergence affects grain formation.
Contributed by rkmp.drr on Tue, 2011-11-01 13:59
Gallmidge Fly (Sarha insects)
Symptoms of Damage:
1. The chief stage of Gall midge which causes damage is the maggot. The maggot feeds on the growing tip and suppresses the leaf primordial differentiation.
2. This in turn induces the development of radial ridges from the innermost leaf primordium followed by an elongation of the leaf sheath.
Contributed by rkmp.drr on Tue, 2011-11-01 13:04
Rice Gundhi Bug
Symptoms of damage:
1. The adults and nymphs suck the juice from the developing grains in the early stage of grain formation.
2. Young succulent leaves and shoots are also attacked before the grain formation stage. Infestation is characterised by the presence of some empty or ill-formed grains in the panicles.
Contributed by rkmp.drr on Tue, 2011-11-01 12:57
Juice sucking insects
Symptoms of damage:
1. Both the nymphs and adults suck the sap from leaves. As a result of pest attack, initially yellowish streaks appear on the leaves.
2. Later, the leaves curl longitudinally from the margins inwards leading to sharply pointed leaf tips resembling that of needles, which finally wither.
Contributed by rkmp.drr on Tue, 2011-11-01 12:42
Stem borer 
Symptoms of damage:
1. The larvae of the borers enter the tiller, feed, grow and cause the characteristic symptoms of ‘dead hearts’ or ‘white ears’ depending on the crop stage.
2. At tillering stage, the feeding frequently results in severing the apical parts of the plant from the base.
Contributed by rkmp.cg on Sat, 2011-08-06 12:25
Symptoms
1. This occur at the time of panicle initation stage.
2. At this time normal grain color changes to brownish white color.
Management
1. Seed treatment with Bavistin (0.2%) or vitavax (0.2%) for 6 hrs.
2. Spary bavistin 0.1 %
Contributed by rkmp.cg on Sat, 2011-08-06 12:23
Symptom
1. Usually in nursery; chlorotic/ yellow patches at leaf base on both sides of the midrib; restricted root growth and usually main roots turn brown.
Management
1. Use 25kg Znso4/ha before transplanting or sowing at time of land preparation.
2. If crop is infected then use 5 kg Znso4 + 25 kg lime in 600-700 litre water per hectare.
Contributed by rkmp.cg on Sat, 2011-08-06 12:15
Causal organism:- ustilago noidea virus
Symptom
1. False smut start as light green ball of spores covered by a thin silver colored skin. The balls erupt exposing the orange spores.
2. As time passes spores turn dark green to black. Damage from smuts occur due to contamination of other grains by spores during harvest, miiling causing quality problems and discoloration during paraboiling and cooking.
Management
1. Excessive nitrogen increases diseases.
2. Use resistant varities
Contributed by rkmp.cg on Sat, 2011-08-06 11:45

Causal organism: Thanatephorus cucumeris
Symptoms
1. initial infection occur on the stem near the water lime and appear as water soaked oval lesion which often dries and turns tan.
2. All the plant parts are susceptible to infection except roots. Sheath tends to develop in circular areas in the field and cause what are called bird nests.
3. It starts as white bean like structures that turn dark brown to black
Contributed by rkmp.cg on Sat, 2011-08-06 11:43

Local name:
Nature Of Damage of Armyworm:
1. Damage is caused by larvae feeding on leaves from edges, leaving only the midrib and stems.
2. In severe infestation, entire seed beds and fields are destroyed and appears r as if it has been grazed by animals.
Control of Armyworm: