Crop Protection :: Pests of Grapes 
         
       
      
          
             Mealy bug: Maconellicoccus hirsutus  
              
                
                  Symptoms of damage 
                    
                      - Nymphs and adults suck the sap from leaves, shoots and fruits
 
                      - Honey dew – development of sooty mould on leaves, shoots and branches
 
                      - Crinkling and yellowing of leaves
 
                      - Rotting of berries
 
                     
                    Identification of pest 
                    
                      - Nymph - pinkish in colour.
 
                      - Adult – pink colour and covered with white wax
 
                     
                    Management 
                    
                      - Apply quinalphos dust in the soil @ 20 kg/ha to kill the ants.
 
                      
                      - Spray dichlorvos 76 WSC at the rate of 1 ml/lit with fish oil rosin soap at 25 g/lit.
 
                      - Release Coccinellid beetle, Cryptolaemus montrouzieri at the rate of 10 per vine.
 
                    | 
                    
                    
                    
                        | 
                     
                    
                      | Pink mealy bug | 
                     
                    | 
                 
                                
              
             | 
           
                     |