Vegetable prices expected to ease
It is predicted that the monthly Food Price Index due to be released next week will show an easing in vegetable prices, with industry insiders saying the trend is set to continue as we head into winter.
A year-long Ministry for Primary Industries (MPI) study looking at chemical residues in fresh, unwashed produce indicates New Zealand growers are largely following good agricultural practice (GAP) in how they use chemicals.
MPI has released test results from the second and third quarter of the annual Food Residue Surveillance Programme (FRSP). This programme targets locally-produced and imported crops prone to exceeding the maximum residue limit (MRL) set for agricultural chemicals, and crops where little data is available on chemical use. MRLs are used to determine whether growers have followed GAP.
This year's focus is on asparagus, eggplant, feijoas, hops, lemons, olive oil, persimmons, pumpkins, spring onion, sweet corn, tamarillos and walnuts. In total, more than 350 chemicals are being tested for.
The commodities sampled in the second and third quarter included eggplant, lemons, walnuts, hops, spring onion, pumpkin, asparagus, and olive oil. No residues were found in hops and residue results for eggplant, pumpkin and lemon samples tested were all within the acceptable MRL.
Of all 247 samples tested in the two quarters, only 11 contained residues that did not comply with the relevant MRLs and none of the residues found posed health or food safety concerns.
"These results indicate that most growers are using pesticides responsibly in the recommended manner," manager food assurance Paul Dansted says.
The samples that had residues over the MRL or allowable limit were:
• three out of 24 spring onion samples that contained non-compliant levels of the fungicide triadimenol.
• one out of 24 asparagus samples that contained non-compliant levels of the fungicide metalaxyl and the herbicides bromacil and diuron.
• one out of 48 walnut samples contained residues that indicate it may breach the NZ default MRL for dithiocarbamates.
• two out of 48 samples of olive oil that contained levels of the fungicide difenoconazole which – when taking the processing factor into account – indicate that the raw olives would have likely breached the MRLs for those compounds.
• four out of seven tamarillo samples contained non-compliant levels of the insecticide deltamethrin. This is in line with results from quarter one. MPI staff have followed up with the non-compliant growers identified and the industry to ensure future product is compliant.
"While the non-compliant residues do not cause human health concerns, they suggest GAP may not have been followed in these instances and as a result we are following up with the growers," Paul says.
Results from this year's FRSP are online:
http://www.foodsafety.govt.nz/science-risk/project-reports/food-composition/contaminants/frsp.htm
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