Vydate C-LV is mainly used to suppress nematodes, but it may also control several insect pests. Similar products containing oxamyl are available but use rates may vary.
For Nematodes: Application instructions vary with nematode species. In some cases, a shanked-in preplant fumigant may be recommended in addition to an oxamyl program. Applications of Vydate C-LV often start with an in-furrow application at planting followed by foliar applications via chemigation. The number and timing of foliar applications depends on the type of nematode. Chemigate using enough water to cover all tubers in the hill. The spray solution should be buffered to pH 5-7 for all applications. Do not apply more than 19.2 pints/A per season.
For Insect Pests: Application timing and depends on the pest, and applications targeting nematodes may not always control insects. Apply via ground, aerial, or chemigation. For ground or aerial application use up to 2.1 pints/A. For chemigation, use 2.1 pints/A, with a maximum of 0.2-inch of water. The spray solution should be buffered to pH 5-7 for all applications. Do not make more than 8 applications.
| Stage of Development: Planting to Pre-emergence | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Nematodes (various spp.) (various) | 1A | G | See Label | 48 h | 7 d | Vydate C-LV application instructions vary with nematode types. See instructions for Root-Knot Nematodes, Stubby-Root Nematodes, and Root Lesion Nematodes. |
| Root Lesion Nematodes (Pratylenchus species) | 1A | G | 2.1-4.25 pt | 48 h | 7 d | Start with an in-furrow application at planting and follow with foliar applications via chemigation. The in-furrow application is optional but is recommended to risk-averse growers and when following alfalfa. |
| Root-Knot Nematodes (Meloidogyne species) | 1A | G | 2.1-4.25 pt | 48 h | 7 d | Start with an in-furrow application at planting and follow with foliar applications via chemigation. The in-furrow application is optional but is recommended for risk-averse growers and when following alfalfa. |
| Stubby Root Nematodes (Paratrichodorus and Trichodorus species) | 1A | G | 2.1-4.25 pt | 48 h | 7 d | Start with an in-furrow application at planting and follow with foliar applications via chemigation. The in-furrow application is optional but is recommended to risk-averse growers and when following alfalfa. Corky ringspot may not be controlled if nematodes are not suppressed prior to tuber initiation. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Stage of Development: Emergence to Row Closure | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Aphid (various species) | 1A | G-F | 1.1-2.1 pt | 48 h | 7 d | Applications targeting nematodes may suppress aphids but are not expected to control large infestations. Apply before populations build, or before an earlier systemic aphicide breaks down. Re-treat after 14-days if aphids continue to move into the field and your goal is to limit spread of Potato Virus Y. |
| Beet Leafhopper (Circulifer tenellus) | 1A | G | 1.1-2.1 pt | 48 h | 7 d | Apply when BLH populations are increasing. Re-treat after 14-days to maintain control of migrating BLHs. Making 3-4 applications late May to early July has been observed to control BLHs and prevent transmission of purple top disease. Later applications are not usually warranted. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 1A | G | 0.5-2.1 pt | 48 h | 7 d | Apply when 50% of eggs have hatched and most larvae are small. Expect 7-14 days of residual control. |
| Lygus Bugs (Lygus species) | 1A | G | 1.1-2.1 pt | 48 h | 7 d | Apply when nymphs are present. |
| Nematodes (various spp.) (various) | 1A | G | See Label | 48 h | 7 d | Vydate C-LV application instructions vary with nematode types. See instructions for Root-Knot Nematodes, Stubby-Root Nematodes, and Root Lesion Nematodes. |
| Root Lesion Nematodes (Pratylenchus species) | 1A | G | 2.1 pt | 48 h | 7 d | Apply the first foliar treatment of 2.1 pints/A via chemigation at crop emergence. Follow with three applications of 2.1 pints/A on 14-day intervals. |
| Root-Knot Nematodes (Meloidogyne species) | 1A | G | 2.1 pt | 48 h | 7 d | Apply the first foliar treatment of 2.1 pints/A via chemigation at crop emergence. Follow with 2.1 pints/A when soil degree-days reach 1440 DD °F, and then 2.1 pints/A on 14-day intervals until 7 days to harvest. |
| Stubby Root Nematodes (Paratrichodorus and Trichodorus species) | 1A | G | 2.1 pt | 48 h | 7 d | Apply the first foliar treatment of 2.1 pints/A via chemigation at crop emergence. Follow with three applications of 2.1 pints/A on 14-day intervals. Stubby root nematodes must be suppressed prior to tuber initiation to control corky ringspot. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Stage of Development: Tuber Bulking | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Aphid (various species) | 1A | G-F | 1.1-2.1 pt | 48 h | 7 d | Applications targeting nematodes may suppress aphids but are not expected to control large infestations. Apply before populations build, or before an earlier systemic aphicide breaks down. Re-treat after 14-days if aphids continue to move into the field and your goal is to limit spread of Potato Virus Y. |
| Colorado Potato Beetle (Leptinotarsa decemlineata) | 1A | G | 0.5-2.1 pt | 48 h | 7 d | Apply when 50% of eggs have hatched and most larvae are small. Expect 7-14 days of residual control. |
| Lygus Bugs (Lygus species) | 1A | G | 1.1-2.1 pt | 48 h | 7 d | Apply when nymphs are present. |
| Root-Knot Nematodes (Meloidogyne species) | 1A | G | 2.1 pt | 48 h | 7 d | The first foliar treatment should have been applied at crop emergence. Follow with 2.1 pints/A when soil degree-days reach 1440 DD °F, and then 2.1 pints/A on 14-day intervals until 7 days to harvest. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Stage of Development: Late Tuber Bulking to Harvest | ||||||
|---|---|---|---|---|---|---|
| Pest or Disease | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
| Root-Knot Nematodes (Meloidogyne species) | 1A | G | 2.1 pt | 48 h | 7 d | Foliar treatments, using 2.1 pints/A, should be applied via chemigation on 14-day intervals until 7 days to harvest. But do not exceed 19.2 pints/A total for the season. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
