New controls on some OP insecticides – a reminder
The Environmental Protection Authority (EPA) and the Ministry for Primary Industries (MPI) have reassessed a number of Organophosphate and Carbamate (OPC) insecticides.
Table 1 provides a summary of the new controls, MRLs (maximum residue levels) and PHIs (pre-harvest intervals) that are now in force as a result of the reassessments.
BANNED PRODUCTS AND PHASE OUTS:
A number of insecticides will be phased out in the near future.
• Phorate (Crop Care Phorate 20 G, Thimet 20G) was banned on 1 July 2016 and can no longer be used.
• Oxamyl (Vydate) is no longer registered.
• Prothiofos (Tokuthion), Fenamiphos (Nematak; Nemacur; Fenafos, Canyon), Methamidophos (Metafort, Methafos) and Terbufos (Counter 20G) will be banned by 1 July 2023 (in 7 years).
• Diazinon will be banned by 1 July 2028 (in 11 years).
Most OPC insecticides have additional controls. New labels (those printed from July 2015) should be read carefully. All growers must adhere to all label instructions as for some products (in Table 1), the directions are all mandatory. These additional controls came into effect on 1 July 2015, and include:
• Bee controls – when you can and cannot spray. The main control is around not applying if bees are present or are likely to be present or are foraging during application until after the spray has dried. In addition some products cannot be applied 7 to 10 days pre-flowering, with exclusions for some crops (refer to individual labels for instructions).
• Re-entry intervals and non-contact periods apply – most are at least 12 to 48 hours.
• Maximum rate and number of applications – these differ and can be per season or per crop cycle. Some also have set application intervals.
• Restricting method of application – i.e. no application to sensitive areas, no aerial application, only using fully automated equipment, only spot or dipping, hand-gun use banned etc.
• Notification of neighbours and displaying of signage is a requirement for almost all OPCs.
• Spray drift mitigation measures are required for most OPCs where the applicator must not cause adverse
effects beyond the boundary of the treated property, and must avoid adverse effects from spray drift.
• Other controls – such a cover granules with soil and keep records of use are also new.
• New MRLs and PHIs have been set for some crops. This is summarised in Table 1.
All of the additional controls have been summarised in the past and can be sent to you upon request. Please contact your business manager.
The new use patterns and controls are on product labels approved after July 2015 and can be viewed on the MPI website here: https://eatsafe.nzfsa. govt.nz/web/public/acvm-register.
WHAT COMPOUNDS ARE AFFECTED?
The eight compounds below were reassessed, with the additional six compounds in Table 1 also reassessed by MPI (in addition to the EPA). The controls summarised are applicable to all of these compounds. The reassessments resulted in use patterns being revised and some crops being removed from labels. You can no longer use Acephate (Orthene), Diazinon (Dew), Fenamiphos (Nemacure) and Methamidophos (Metafort, Methafos) off label. You must only use these products strictly according to label directions and must observe all controls. This includes following exact use pattern directions i.e. using these products strictly according to the label claims in terms of approved crops, maximum rates, application frequencies, timing, withholding periods (WHPs), target insects etc. This information is summarised in Table 1. >