swab-analyse

Preventing bacteria and viruses in a greenhouse with a good hygiene protocol

Good hygiene in horticulture is essential to keep bacteria, fungi and viruses out. For some viruses, such as the tomato brown rugose fruit virus (ToBRFV), hygiene is currently the only cure to prevent this. To ensure that the greenhouses comply with good hygiene, it is for example good to check whether the disinfection measures have been effective. Groen Agro Control can perform various analyzes to check this.

By going through risk spots with a swab or pressure plate, it is possible to check how clean a place is. A risk spot in the greenhouse for example is, the cultivation gutter. From here, recontamination to the new crop often occurs.

Wondering if your hygiene measures have been effective? Or do you need advice about hygiene measures? Then contact hygiene specialist Ines van Marrewijk by sending an email to  i.vanmarrewijk@agrocontrol.nl or by calling 015 257 25 11. Or read more information here.

Delft Research Group has raised 57 places in the Hillenraad top-100 in three years

The Delft Research Group has secured the 23rd place in the Hillenraad100 this year. We have raised 57 places in three years. From position 80 in 2016 to position 23 in 2019.
We thank this position to the innovations technological solutions within our companies such as the reliable analyzes of our laboratory Green Agro Control.

MRL changes

On 29 October the EU published Regulation 2019/1791 announcing changes to the MRLs. Regulation 2019/1791 describes MRL adjustments of 1-decanol, 2,4-D, ABE-IT 56, cyprodinil, dimethenamid, fatty alcohols, florpyrauxifen-benzyl, fludioxonil, fluopyram, mepiquat, pendimethalin, picolinafen, pyraflufen-ethyl, pyridaben, S -abscisinic acid and trifloxystrobin in or on certain products. These changes are valid from November 18, 2019. The changes for Pyridaben are already in force since the 13th of August, 2019.

Groen Agro control visits the Fruit Attraction in Madrid

Groen Agro Control will visit the Fruit Attraction fair on 22 October in Madrid. Product manager Michel Witmer will be there to inform visitors about residue- and microbiological analyses in fruit and vegetables. You can make an appointment with him in advance via m.witmer@agrocontrol.nl or by calling 015 – 257 25 11.

Lower reporting limit for phosphonic acid

Recently we have optimized our method for phosphorous acid. This makes it possible to determine this component in even lower concentrations. Residue of phosphonic acid can arise from the use of the fungicide Fosetyl-aluminum or the use of fertilizers based on potassium phosphonate.

The new reporting limit for phosphonic acid in fruit and vegetable products is: 0.05 mg / kg

Residue analysis by Green Agro Control Peru

Since January 2019, Groen Agro Control Peru has been conducting residue analyses for growers and exporters in Peru. With the opening of our branch in Lima, we have the opportunity to also do our extensive GC-MSMS & LC-MSMS residue screening (> 700 components) in Peru. Growers and exporters can use this to check whether their products meet European MRLs or additional retail requirements prior to shipment.
Do you want to know more about our services in Peru? Ask us about the possibilities or contact: Natxo de Elvira (n.deelvira@agrocontrol.nl)

MRL reduction to 0,01 mg/kg for Fenbutatin oxide in citrusfruits

The MRL-changes that are described in regulation (EU) 2019/90, are valid since last week. The reduction of the MRL for Fenbutatin oxide in citrus fruits has a high impact. The previous MRL was 5.0 mg/kg and has been decreased to 0,01 mg/kg. Because of this reduction the chance of exceedances of the MRL for Fenbutatin oxide in these products is significant. Growers and traders of citrus fruits should be extra aware of this chance if their fruit has the EU as destination. Fenbutatin-oxide is an insecticide and is analysed by Groen Agro Control in the pesticide residue screening GC-MSMS & LC-MSMS.

Quick and reliable analysis for glyphosate residue

Groen Agro Control specializes in the analysis of pesticide residues. In addition to our extensive Multi residue method, we also analyse for glyphosate. This analysis can be performed in water, soil or crops. Glyphosate is a herbicide and is allowed to be used during cultivation of many different crops, which means that high concentrations can also occur in surface water.

If you are interested in our services, please contact our product managers.

Quick and reliable analysis for residues of pesticides

The residulab of Groen Agro Control lab specializes in the analysis of pesticide residues. In particular, we can offer fast and reliable analyses for fresh produce and cereals. Our accredited multi-residue screening is able to determine more than 700 active substances at the same time. In addition to this screening, we also perform specific analyses such as Fosetyl-Al, Ethephon, Perchlorate or Dithiocarbamates.

If you are interested in our services, please contact our product managers.

Updates to the multi-residue screening for fresh produce, cereals and water

The specialists of our pesticide residue laboratory have completed a number of important developments. For the matrices Fresh Produce, Cereals and water various improvements have been made to the analysis methods. New analysis lists for fresh produce, cereals and water are valid from the 23rd of April.

Fresh Produce:

– A specific analysis for Prohexadione calcium has been developed.

– The reporting limit for chlormequat and mepiquat has been changed from 0.01 to 0.005 mg/kg.

– The accreditation and the reporting limits of the specific heavy metals have been added.

Cereals:

– The Analysis list of the GC-MSMS and LC-MSMS screening for cereals has been expanded.

– The reporting limit for chlormequat and mepiquat have been changed from 0.01 to 0.005 mg/kg.

– The accreditation and the reporting limit of the specific heavy metals have been added.

Water:

– The Analysis list of the GC-MSMS and LC-MSMS for water screening has been expanded with 57 components.

– The accreditation and the reporting limits of heavy metals have been added.

– A specific analysis for Prohexadione calcium has been developed.

– A specific analysis for 6-benzyladenine has been developed.

Additional components for the standard screening in water

1-NaphthaleneacetamideBromoxynilDicambaFenisofamMCPASulfentrazon
2,4,5-TButuronDichloorpropFluazifopMCPBTEPP
2,4-DChloorfluazuronDichlorofenFluazinamMecopropTerbuthylazine
4-ChloorfenoxyazijnzuurChromafenozideDiclofopFlumethrinOrizalinTolfenpyrad
AlachloorClimbazoolDimethenamid-pFlupyradifuronePenflufenTriazoxide
AzimsulfuronClodinafopDimethirimolFluxapyroxadPinoxadenTriclopyr
BenoxacorCyantraniliproleDipropetrynFoximProsulfocarbValifenalaat
Bensulfuron-methylCyclanilideDithianonIndaziflamPyrimidifen
BentazonCyenopyrafenEtoxazoolIoxynilQuinoclamine
BixafenCyhexatin / AzocyclotinFenbutatinoxideIsouronSedaxane