Selective, Systemic plant growth regulator, absorbed primarily by roots and coleoptiles and translocated acropetally in the xylem. Effectively used in vapour phase treatment of stored potatoes to prevent sprouting
| Potato ‘No Sprout’ VAPOUR | |
|---|---|
Target |
Stored Potatoes |
Product Type |
Growth Regulator / Sprout Suppressant |
Active Ingredient |
500g/L Chlorpropham |
Pack Size |
20L, 200L |
APVMA Registration # |
66675
Search APVMA number at APVMA PubCRIS. |
Introduced in 1956. Inhibits microtubule organization, disrupting mitosis in the in the sprout meristems
Acute oral (LD50, mg/kg) rats – 4200
| Crop | Rate | Critical Comments |
|---|---|---|
| Stored Potatoes | Up to 6L / 100 tonnes potatoes |
Apply undiluted through conventional fogging equipment into the sealed storage shed. Application rate will depend upon: variety of potatoes, storage conditions and the desired length of storage. Re-treatment may be necessary. It is recommended to monitor chlorpropham levels and if residue levels fall below the critical level of 25ppm, topping up may be required. Treatment with Potato ‘No Sprout’ VAPOUR must be managed so that potatoes removed from storage and sent for processing contain less than 30 mg/kg chlorpropham. |