| 
    
      | Home | About Us | Success Stories | Farmers Association | Farmers' Innovation | Publications| Contact | 
        
  
     | 
    
    
      
          
          TNAU Agritech Portal :: Crop Protection  
       
         
        
        
          
            
              Leaf eating caterpillar: Spodoptera litura 
                | 
             
            
              Symptoms of damage: 
                
                  - Young larva scrap leaves on ventral surface
 
                  - Grownups defoliate crops
 
                  | 
             
            
               
              
  | 
              
                
                   
  | 
                   
  | 
                   
  | 
                   
  | 
                 
                
                  | Larval feeding | 
                  Scrabbing | 
                  Foliar damage | 
                  Flower damage | 
                 
                | 
             
            | 
         
         
        
          
            Identification of pest: 
              
                - Egg: Masses appear golden brown
 
                - Larva: Pale greenish with dark markings, gregarious      in the early stages
 
                - Adult: Brownish in colour,      Forewings are brown colour with      wavy white marking, Hind wings      are white colour with a brown patch along the margin
 
               
Management: 
- Grow castor as trap crop. Collect and destroy egg masses and early instar larvae
 
- Set up pheromone traps @ 12/ha.
 
- Spray SlNPV 1.5 x 1012 POBs/ha
 
- Spray Azadirachtin 1.0 % EC (10000 ppm) 2.0 ml/ lit. or apply Bacillus thuringiensis 2g/lit. during evening hours.
 
  - Plough the soil to expose      and kill the pupae
 
  - Grow castor along border and      irrigation channel as trap crop
 
  - Set up light trap @1/ha
 
  - Pheromone traps (Pherodin      SL) @15/ ha to attract male moths
 
  - Collect and destroy egg      masses in castor and tomato
 
  - Hand pick grown up larvae      and kill them
 
  - Spray Sl NPV @ 1.5 X 1012  POBs / ha+2.5 Kg crude sugar+0.1 % teepol
 
  - Poison bait: Rice bran 5 Kg      + Molasses or Brown sugar 500g + Carbaryl 50 WP 500g+ 3lit of water/ha. Mix      the ingredients well and are kept around the field in the evening hours
 
  - Spray chlorpyriphos 20 EC 2 lit/ha      or dichlorovos 76 WSC 1 lit/ha
 
 
   | 
            
              
                  | 
                  | 
               
              
                | Larva | 
                Adult  | 
               
              | 
           
          | 
    
    | Updated on Jun, 2023 | 
          
       
        Home | About Us | Success Stories | Farmers Association | Farmers' Innovation | Publications | Disclaimer | Contact Us
        
      © TNAU 2008 - 2024 All Rights Reserved.  |