3. ESTÁNDARES Y CRITERIOS DE EVALUACIÓN
3.1. Calidad del programa formativo
organophosphate
(group 1B) chlorpyrifos Lorsban 15G 7.9–15.7 kg/ha
(3.2–6.3 kg/acre) 109 Bulb onions only. See the label for spacing and planter specifications. See label for recropping restrictions. Maximum 1 application/season.
24-hr re-entry interval.
109 Dry bulb shallots only. See label for spacing and planted specifications. See label for recropping restrictions. Maximum 1 application/season. 24-hr re-entry interval.
97 Pickling onions only. See the label for spacing and planter specifications. See label for recropping restrictions. Maximum 1 application/season. 24-hr re-entry interval.
Pyrifos 15G 7.9–15.7 kg/ha
(3.2–6.3 kg/acre) 109 Dry onions only. See the label for spacing and planter specifications. See label for recropping restrictions. Maximum 1 application/season.
24-hr re-entry interval.
97 Pickling onions only. See the label for spacing and planter specifications. See label for recropping restrictions. 24-hr re-entry interval.
Lorsban 4E 150 mL/1,000 m of row using 800 L of water/ha At 30–38-cm row spacing:
3.9–4.9 L of product/ha (1.6–1.9 L product/acre)
30 Green onions only. Apply at time of set planting or 7–10 days after seeding as drench banded over row. See label for recropping restrictions.
Maximum 1 application/yr.
Foliar Sprays for Onion Maggot Flies organophosphate
(group 1B) diazinon Diazinon 50WSP 1.1 kg/ha
(0.4 kg/acre) 10 Onions only. 3-day restricted entry interval.
Diazinon 500 E 1.1 L/ha
(0.4 L/acre) 10 Onions and green onions only. 3-day re-entry interval.
naled Dibrom 530 mL/ha
(214 mL/acre) 4 Bulb onions only. Maximum 2 applications/
season. 48-hr re-entry interval.
pyrethroid
(group 3A) cypermethrin Ripcord 400 EC 175 mL/ha
(71 mL/acre) 3 Onions only. Maximum 3 applications/season.
UP-Cyde 2.5 EC 280 mL/ha
(113 mL/acre) 3 Onions only. Maximum 3 applications/season.
12-hr re-entry interval.
NIONS , L EEKS AND S HALLOTS
1 Resistance to these insecticides has been observed in Ontario muck soils.
2 Maintain a spray water pH of 6 or greater.
3 This product has been tested in combination with a non-ionic surfactant for safety to some varieties of bulb onions; however, testing has not been conducted on all crops and varieties in the bulb onion sub-group under the range of conditions that may cause crop injury.
For information on insecticides and bee poisoning, see Chapter 1 and Chapter 2.
For resistance management, rotate between insecticides from different chemical groups.
LEGEND: PHI = Pre-Harvest Interval (in days) Group Name
(Group #) Common
Name Trade Name Rate PHI Notes
THRIPS
organophosphate
(group 1B) naled Dibrom 530 mL/ha
(214 mL/acre) 4 Bulb onions only. Maximum 2 applications/
season. 48-hr re-entry interval.
pyrethroid1
(group 3A) lambda-
cyhalothrin Matador 120EC 188 mL in 500 L water/ha
(76 mL in 50 gal water/acre) 14 Dry bulb onions, green onions, leeks and shallots. Maximum 3 applications/yr. 10-day re-entry interval for hand harvest and thinning in green onions. 24-hr re-entry interval for all other activities in green onions. 24-hr re-entry interval for all other crops.
Silencer 120 EC
cypermethrin Ripcord 400 EC 175 mL/ha
(71 mL/acre) 3 Onions only. Maximum 3 applications/
season.
UP-Cyde 2.5 EC 280 mL/ha
(113 mL/acre) 3 Onions only. Apply at 10-day intervals.
Maximum 3 applications/season. 12-hr re-entry interval.
deltamethrin Decis 5 EC 200 mL/ha
(81 mL/acre) 5 Onions only. Maximum 1 application/yr.
spinosyn
(group 5) spinetoram Delegate WG 200–336 g/ha
(81–136 g/acre) 3 Suppression only. Dry bulb onions, green onions, leeks and shallots. Apply according to monitoring (when onion thrips first appear or at threshold of 1 thrips/leaf for dry bulb onions) at sufficient pressure and water volume to ensure spray solution penetrates into the leaf axils. Use high rate when pest pressure is high and/or insects are in advanced growth stages. Maximum 3 applications/yr. 12-hr re-entry interval.
spinosad Success2 218–262 mL/ha
(88–106 mL/acre) 3 Suppression only. Dry bulb onions, green onions, leeks and shallots. Apply according to monitoring (when onion thrips first appear or threshold of 1 thrips/leaf for dry bulb onions) at sufficient pressure and water volume to ensure spray solution penetrates into the leaf axils. Use high rate when pest pressure is high and/or insects are in advanced growth stages. Maximum 3 applications/yr. Re-entry permitted once spray deposit has dried.
Entrust 802 131–158 g/ha
(53–63 g/acre)
avermectin
(group 6) abamectin Agri-mek
1.9% EC3 600–1,200 mL/ha
(243–485 mL/acre) 30 Dry bulb onions, pearl onions and shallots only. Apply when onion thrips first appear or at threshold of 1 thrips/leaf for dry bulb onions. Non-ionic spreading and penetrating surfactants used at a rate of 0.25%–0.5% v/v may improve control. Do not use binder or sticker-type surfactants.
Follow surfactant label carefully and test a small number of plants before treating a large area.3 See label for application details.
Maximum 3 applications/season. Re-entry permitted once spray deposit has dried.
O NIONS , L EEKS AND S HALLOTS
Table 3–102. Onion, Leek and Shallot Insect Control — Thrips
For information on insecticides and bee poisoning, see Chapter 1 and Chapter 2.
For resistance management, rotate between insecticides from different chemical groups.
LEGEND: PHI = Pre-Harvest Interval (in days) Group Name
(Group #) Common
Name Trade Name Rate PHI Notes
THRIPS (cont’d) tetronic and tetramic acid derivatives (group 23)
spirotetramat Movento 240 SC 365 mL/ha
(148 mL/acre) 3 Dry bulb onions and shallots. Apply when thrips are first noticed or according to thresholds for dry bulb onions. Movento should be used during the first half of the season when adult populations are relatively low or building. Reduction in numbers of thrips larvae may take 3–4 days after application. Label directions require a tank mix with a specified spray adjuvant/additive.
See label for application details. See label for recropping restrictions. Maximum 2 applications/season with a minimum of 7 days between applications. 12-hr re-entry interval.
7 Green onions and leeks. Apply when thrips are first noticed. Movento should be used during the first half of the season when adult populations are relatively low or building.
Reduction in numbers of thrips larvae may take 3–4 days after application. Label directions require a tank mix with a specified spray adjuvant/additive. See label for application details. See label for recropping restrictions. Maximum 2 applications/season with a minimum of 7 days between
applications. 12-hr re-entry interval.
diamide
(group 28) cyantraniliprole Exirel 1–1.5 L/ha
(405–607 mL/acre) 1 Suppression only. Dry bulb onions, green onions, leeks and shallots. Begin applications when thrips populations are low. If thrips populations are high, use a registered insecticide with different mode of action to reduce thrips populations before applying cyantraniliprole. For optimum control of thrips, use a spray adjuvant as stated on the Exirel label. See label for tank-mix and crop tolerance information. See label for rotational crop restrictions. Do not exceed 4.5 L/ha/season. Maximum 4 applications/season. 12-hr re-entry interval.
1 Resistance to these insecticides has been observed in Ontario muck soils.
2 Maintain a spray water pH of 6 or greater.
3 This product has been tested in combination with a non-ionic surfactant for safety to some varieties of bulb onions; however, testing has not been conducted on all crops and varieties in the bulb onion sub-group under the range of conditions that may cause crop injury.
NIONS , L EEKS AND S HALLOTS
For information on insecticides and bee poisoning, see Chapter 1 and Chapter 2.
For resistance management, rotate between insecticides from different chemical groups.
LEGEND: PHI = Pre-Harvest Interval (in days); — = not specified on label Group Name
(Group #) Common
Name Trade Name Rate PHI Notes
LEEK MOTH pyrethroid
(group 3A) lambda-
cyhalothrin Matador 120EC 188 mL in 500 L water/ha
(76 mL in 50 gal water/acre) 14 Dry bulb onions, green onions, leeks and shallots. Maximum 3 applications/yr. 10-day re-entry interval for hand harvest and thinning in green onions. 24-hr re-entry interval for all other activities in green onions. 24-hr re-entry interval for all other crops.
spinosyn
(group 5) spinetoram Delegate WG 200–336 g/ha
(81–136 g/acre) 3 Suppression only. Dry bulb onions, green onions, leeks and shallots. Apply 1 week after peak pheromone trap capture. Use higher rates when pest pressure is high and/or insects are in advanced growth stages.
Maximum 3 applications/yr. 12-hr re-entry interval.
spinosad Success1 218–262 mL/ha
(88–106 mL/acre) 3 Suppression only. Dry bulb onions, green onions, leeks and shallots. Apply 1 week after peak pheromone trap capture. Use higher rates when pest pressure is high and/or insects are in advanced growth stages. Maximum 3 applications/yr. Re-entry permitted once spray deposit has dried.
Entrust 801 131–158 g/ha
(53–63 g/acre)
Bioprotec CAF 1.4–2.8 L/ha
(0.56–1.1 L/acre) 0 Suppression only. Onions, green onions, leeks and shallots. Apply 7–10 days after peak pheromone capture.
CUTWORMS organophosphate
(group 1B) chlorpyrifos Lorsban 4E/NT 2.4–4.8 L/ha
(1–1.9 L/acre) 60 Bulb and pickling onions only. Apply between 2–5-leaf stage. See label for recropping restrictions. Maximum 1 application/season.
24-hr re-entry interval.
Pyrinex 480 EC
Nufos 4E 2.4–4.8 L/ha
(1–1.9 L/acre) 60 Bulb onions only. Apply between 2–5-leaf stage. See label for recropping restrictions.
Maximum 1 application/season. 24-hr re-entry interval.
Warhawk 480 EC
pyrethroid
(group 3A) cypermethrin Ripcord 400 EC 175 mL/ha
(71 mL/acre) 21 Onions only. Do not disturb soil for 5 days after treating.
permethrin Pounce 384EC 180–390 mL/ha
(73–158 mL/acre) — Onions only. Apply to moist soils up to 5-leaf stage. Do not disturb soil for 5 days after application. Use high rate on large larvae, dry soils or muck soils. 12-hr re-entry interval.
Perm-UP
Ambush 500EC 140–300 mL/ha
(57–121 mL/acre)
1 Maintain a spray water pH of 6 or greater.
PARSNIPS
PARSNIPS
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