Abstract
The samples of the cauliflowers were analyzed to assess the residue level of six insecticides (i.e.; cypermethrin, quinalphos, diazinon, malathion, fenitrothion and acephate) using GC-FTD and GC-ECD method. Out of analyzed 75 collected samples of cauliflower from farmer’s field of Jessore, Gazipur and Rangpur, 38.67% (29 from 75) were found to be contaminated with the insecticides. Many samples contained cypermethrin, acephate and fenitrothion residues. Quinalphos, acephate and fenitrothion were found as multiple product residues representing 13.79% (4 from 29) of the total contaminated samples and the rest 86.21% contained single insecticide residue. About 13.33% (10 of 75) of the total samples had residues exceeding the MRL (Maximum Residue Limit) irrespective of single or multiple insecticide residues. Malathion residue was found only in one sample from Jessore. Two samples showed diazinon residue one from Jessore and the other one from Rangpur location. The detected residue levels of both malathion and diazinon were below the MRL, which might be due to higher rate of degradation. The presence of highest residue levels of insecticides in cauliflowers may be due to its irrational and repeated use before harvest.
 Asian Australas. J. Food Saf. Secur. 2018, 2(1), 29-34
Highlights
IntroductionCauliflower is a cole crop which is vulnerable to the attack of many species of insect pests in its various stages (seedling, vegetative and mature stages) of the crop (Riley and Sparks, 2008)
Cauliflower is a cole crop which is vulnerable to the attack of many species of insect pests in its various stages of the crop (Riley and Sparks, 2008)
The analytical results of the cauliflower samples for the detection of insecticide residue have been summarized in Table 1 to Table 3
Summary
Cauliflower is a cole crop which is vulnerable to the attack of many species of insect pests in its various stages (seedling, vegetative and mature stages) of the crop (Riley and Sparks, 2008). Due to the lack of knowledge and non-availability of sustainable alternatives to pesticide, farmers of Bangladesh become dependent on pesticide for crop production. It was found that farmers used 71 different kinds of insecticides in vegetables at an alarming frequency an average of 11 times on cauliflower in Jessore, 8 times in Rangpur and 10 times in Gazipur in a cropping season It was found that many farmers sprayed insecticides every or every alternate day on cauliflower. A considerable number of farmers of those regions sell cauliflower without looking at withholding period of insecticidal spray or at an interval of 0-2 days after spray The present study is undertaken to quantify the insecticide residue in environmental cauliflower samples
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
