The traces pesticides leave in treated products or those left by veterinary drugs in animals are called “residues”. 

• The traces pesticides leave in treated products or those left by veterinary drugs in animals are called “residues”. 
• A study of fruits and vegetables grown in the Nilgiris has found that some of the produce might be harbouring high levels of pesticide, beyond what is considered advisable. This was mainly true of potato and carrot.  
• While the Food Safety and Standards Authority of India (FSSAI) prescribes a maximum residual level (MRL) for some of the organophosphate pesticides used, it does not prescribe it for some other pesticides used in the cultivation of fruit and vegetables.  

Source: NCERT