Application for the Reassessment of a Hazardous Substance under ...

Table 7.Dichlorvos outdoor and indoor plant protection Use Scenarios.UseScenarioOutdoorCrop/Use Method Rate Applications Basis for scenarioEquipment Details FormulationtypeApplicationrateArea orvolumetreatedNo.peryearInterval(days)Application rateArea or volumetreated1 Strawberries Low boom Fine – EC 800 20 ha 1 - Nuvos label. Other crops may use slightlymediumg a.i./halower rates e.g. cereals 750 g a.i./ha2 droplet2 7BBA model3 Vegetables, High boom Fine – EC 800 20 ha 1 -cereals,mediumg a.i./ha4 berriesdroplet2 75 Fruitairblast Finemediumg a.i./ha(Appendix K gives 2000 l/ha for persimmon,EC 2052 8 ha 1 - Divap label gives 90 ml/100 L. Plant & Food(tamarillo/6 persimmons/droplet2 7 giving 2052 g a.i/ha for Divap. Other crops mayberry)use lower water rates e.g. max of 900 l/ha fortamarillo (Horticulture New Zealand pers.comm.).BBA model7 Passionfruit knapsack Finemediumg a.i./haEC 1026 1 ha 1 - Divap label BBA model8 droplet2 7Indoorfog RTU gas 0.05 31250 m 39 Glasshouse Automatic1 - Armourcrop and Nuvos labels.crops/ application a g/m 3 (1.25 ha, 2.5Application frequency may be more frequent10mushroomsm high2 7than in Scenario 10 (3-5 times/yr for capsicum,11 EC glasshouse) 1 - Horticulture New Zealand pers. comm.). butgiven the rapid dissipation, frequency of12 2 7exposure has no effect on the risk (Appendix G).Nuvos label says may be applied as a lightspray, but Plant & Food (2009) indicate it isonly fogged. See too, Scenarios 15 & 16.R. Schreuder(pers. comm.)Dichlorvos reassessment – application Page 35 of 436