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Introduction Salient features Mode of action Advantages of Index
Usage recommendations on Gapes Usage recommendations on Apple Diseases Symptoms    

INTRODUCTION:

INDEX is the best powdery mildew fungicide, having Myclobutanil as the active Ingredient. INDEX is an advanced Azole group fungicide which acts as an ergosterol biosynthesis inhibitor. Myclobutanil is a well known Demethyl Inhibitor (DMI) or Sterol Inhibitor (SI).

Myclobutanil has the Following chemical Structure:


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SALIENT FEATURES OF INDEX:

  • INDEX is an advanced group of azole based fungicide with broad-spectrum activity.
  • Systemic fungicide with protective and curative action.
  • INDEX disrupts the ergosterol biosynthesis pathway, which is vital to fungal cell wall formation.
  • INDEX has an excellent eradicant property to control the fungi even after penetration & colonisation in plant tissues.
  • Being systemic fungicide, INDEX is absorbed by the plant system within an hour and is therefore not washed away with post application rains.
  • INDEX is highly effective against powdery mildew diseases on grape and apples without causing any phytotoxicity to the crops.
  • INDEX can be used as foliar application and as seed treatment.
  • INDEX is very safe to beneficial organisms (predators, parasites and pollinators) and fits well in Integrated Diseases Management schedule.
  • INDEX has consistent efficacy in both cool and high temperatures.
  • INDEX is compatible with most commonly used pesticides.
  • INDEX leaves no residues on the crop. MRL = 1mg/kg (CODEX) on Grape.
  • ADI (Acceptable Daily Intake) = 0.3 mg/ kg b.w.(JMPR).
  • Pre harvest interval (PHI) of INDEX fixed on grapes is 15 days and on apples is 21 days.


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MODE OF ACTION OF INDEX

  • As INDEX is a highly systemic fungicide, INDEX enters into plant system and is more rapidly translocated upward in the plant then in the basipetal directions. INDEX disrupts the ergosterol biosynthesis pathway in the fungus, which is vital to cell wall formation of fungal pathogen.
  • As INDEX has excellent anti-sporulant activity. INDEX never allows the fungal spore formation. As a result the secondary infection or disease spread is checked.
  • INDEX is a very good Demethyl Inhibitor (DMI) or Sterol Inhibitor (SI).


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ADVANTAGES OF INDEX

FEATURE
ADVANTAGE
1. Systemic and eradicant fungicide
 INDEX disrupts the ergosterol biosynthesis pathway in the fungus, which is vital to fungal cell formation and thereby, eradicates the powdery mildew disease.
2. Long residual protection Reduced number of sprays.
3. Anti sporulant activity Secondary infection is checked, thereby, disease spread is arrested.
4. Excellent absorption Facilitates quick action on the pathogen. Also no fear of rains after sprays.
5. Consistent efficacy Temperature (cool/high) has no influence on the efficacy of INDEX
6. Safe to beneficial organisms No harm to honey bee, predator and parasites. Fits well into Integrated Disease Management schedule.
7. PHI & MRL are well known The Pre-harvest Interval (PHI) and Maximum Residue Limits (MRL) are fixed and approved by the Government of India for ensuring quality produce for exports.
8. Cost effective Low cost in term of less number of sprays and good price for better produce.

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USAGE RECOMMENDATIONS INDEX: ON GRAPE

Crop
Common name of Disease
Fungal Pathogen
Dosage
Dilution in water
Grapevine Powdery Mildew Uncinula necator 80 gm/ acre (@200 litres of spray fluid) 0.4 grams / litre

TIME OF APPLICATION

GRAPEVINE
1 Preventive: Spray INDEX starting at rachis elongation i.e., 30 days after pruning.
2. Curative: Spray INDEX immediately after the first appearance of disease symptoms.
3. Eradicant: Spray INDEX 4 days after pruning before primary infection. If weather favorable for disease, repeat the spray at 15 days interval.


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USAGE RECOMMENDATIONS INDEX: ON APPLE

Crop
Common name of Disease
Pathogen
Apple Scab Powdery mildew Venturia inaequalis podophaera leucotricha

INDEX is effective in controlling above diseases with 0.4 gm of INDEX in 1 L of water. Depending upon the spray fluid, the quantity of INDEX shall be calculated @ 0.4 g/L

TIME OF APPLICATION

APPLE
Start spraying INDEX at the pre-pink stage of apple. Repeat the sprays at two weeks interval depending on the severity of powdery mildew and scab disease.

OTHER CROPS
Powdery Mildew Disease is also a major problem in the following crops.

S.No.
Crop
Pathogen
1. Chillies Leveillula taurica
2. Cucarbits / Crucifers / Okra Erysiphae cichoracearum
3. Ber Oidium spp.
4. Pea Erysiphae polygoni
5. Cumin Erysiphae polygoni
6. Rose Sphaerotheca pannosa var. rosae
7. Papaya Oidium caricae
8. Mango Oidium mangifera

As per the IN-house trails extensively conducted on the above, INDEX is also very effective in controlling Powdery Mildew Disease at a dilution of 0.4 gm of INDEX in 1 Litre of water. Depending upon the spray fluid, the quantity of INDEX shall be calculated @0.4 g/litre.


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DISEASE SYMPTOMS

Powdery mildew is characterised by the appearance of spots or patches of a white to grayish, powdery mildew growth on young plant tissues or of entire leaves and other organs being covered by the white powdery mildew.

Powdery mildew is commonly observed on the upper side of leaves but it also affects the young shoots, stems, buds, flowers and young fruit.

Symptoms of Powdery Mildew on Grapevine
Symptoms
on leaf
Symptoms
on berries
Symptoms
on fruits

Symptoms of Powdery Mildew on Apple
Symptoms
on leaf
Symptoms
on leaf
Malformation of apple leaves caused by powdery mildew
Netting pattern on apple fruit caused by powdery mildew infection

Symptoms of Powdery Mildew on Chilli
Symptoms
on leaf



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