Lector

Manufacturer
Cheminova
Category
Herbicides
Registered until
2026-06-30
Registration number
16565
Active materials
Links
A post emergence herbicide for the control of cleavers and other broad-leaved weeds.
A suspension concentrate formulation containing 50 g/l (4.8% w/w) florasulam.
DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section should be read carefully in order to obtain safe and successful use of this product.
 
Crops
LECTOR can be applied in the spring and autumn on all varieties of winter wheat, barley, oats, triticale and rye and spring wheat, barley and oats.
 
Notes
Do not spray when crops are under stress from cold, drought, pest damage, nutrient deficiency etc.
Do not roll or harrow 7 days before or after application.
LECTOR is mainly absorbed by the leaves of the weeds and as such can be applied on all soil types.
Extreme care must be taken to avoid spray drift onto non-crop plants outside of the target area.
 
Restrictions/Warnings
Crop Failure
In the event of crop failure in the spring after an application of LECTOR®, only the following crops may be planted: spring wheat, spring barley, spring oats, maize or ryegrass.
  
Following Crops
Only the following crops can be sown in the same year as a crop treated with LECTOR® is harvested: cereals, oilseed rape, field beans, grass and vegetable brassicas as transplants.
 Vigour reductions may be seen in following crops of oilseed rape after a dry summer. This will be outgrown and will not result in yield loss.
Only the following crops can be sown in the calendar year following treatment with LECTOR: cereals, oilseed rape, field beans, grass, linseed, peas, sugar beet, potatoes, maize, clover (for use in grass/clover mixtures), carrots and vegetable brassicas as transplants.
Take extreme care to avoid drift onto crops and non-target plants outside the target area.
 
Water Volume
Apply LECTOR in 150-300 l/ha of water. The lower volume must only be used in open crops on small weeds.
 
Mixing and Application
Half fill the spray tank with clean water and add the required amount of LECTOR. Add the remainder of the water and continue agitation until spraying is completed.
When tank mixes are to be used, and unless directed otherwise, the preferred order of addition of products to the spray tank is as follows: water, dispersible granules, wettable powders, suspension concentrates, solution concentrate. Each product should be added separately to a half filled spray tank and fully dispersed before the addition of the next product.
LECTOR may be applied through tractor-mounted hydraulic sprayers and knapsack sprayers providing they are in good working order and have been calibrated according to the manufacturers’ recommendations.
Do not apply through CDA applicators.
 
Joint Application
A joint application is the use of a product in tank mixture or sequence with another product.
IMPORTANT NOTE: joint applications should only be made within the label recommendations of every product in the application. Only one other product with an ALS inhibitor mode of action may be applied to a cereal crop treated with LECTOR. A further application of LECTOR® or another product containing florasulam may be made providing the maximum total dose of florasulam is not exceeded . LECTOR may be applied in joint application to the same cereal crop with one of the following ALS products
 
Resistance:
Florasulam is an ALS inhibitor. Herbicide Resistant Weeds Classification (HRAC), B. Avoid using herbicides with a single mode of action, such as ALS herbicides, in the same fields over a number of years. Growers should apply products containing herbicides with different modes of action or use sequences or tank mixes where two or more components are active against the target weeds.
 
Spring Application - Cereals
Winter wheat, barley, oats, triticale and rye and Spring wheat , barley and oats
LECTOR can be applied in the spring once the crop has reached 3 leaves (GS 13) up to and including flag leaf ligule just visible stage (GS 39 inclusive).
 
Rate of application:
One application of up to 150 ml/ha will control all susceptible emerged weeds. A split application may be applied up to a maxi mum total dose of 150 ml/ha where weed germination takes place over an extended period.
  
Weeds Controlled
LECTOR is most effective when applied to small, actively growing weeds. Larger weeds may be less susceptible. For optimum performance it is important to check the size of weeds before application.
Weeds:Cleavers   
Rate of Use:
150 ml/ha -Up to 500 mm
100 ml/ha-200 mm
Weeds:Common chickweed 
Rate of Use: 
100 ml/ha-Flowering
50 ml/ha-6 true leaves
Weeds:Hedge mustard 
Rate of Use:
100 ml/ha-100 mm 
Weeds:Scented mayweed 
Rate of Use:
100 ml/ha-Flower buds visible
50 ml/ha- Rosette stage
Weeds:Scentless mayweed 
Rate of Use:
100 ml/ha-Flower buds visible 
50 ml/ha-Rosette stage
Weeds:Shepherd’s purse 
Rate of Use:
100 ml/ha-100 mm 
Weeds:Volunteer oilseed rape  
Rate of Use:
100 ml/ha-Before flower buds visible
50 ml/ha-4 true leaves
Weeds:Wild radish (Runch) 
Rate of Use:
100 ml/ha-100 mm
 
Autumn Application - Cereals
Winter wheat, barley, oats, triticale and rye
LECTOR should be applied in the autumn once the crop has reached 3 leaves (GS 13) up to and including flag leaf ligule just visible stage (GS 39 inclusive).
Rate of application
One application of up to 75 ml/ha will control all susceptible emerged weeds.
Weeds Controlled
LECTOR is most effective when applied to small, actively growing weeds. Larger weeds may be less susceptible. For optimum performance it is important to check the size of weeds before application.
 
Weeds:Cleavers
Rate of Use:
 75 ml/ha- 25 mm
50 ml/ha- 25 mm
 
Weeds:Common chickweed  
Rate of Use:
 75 ml/ha-50 mm
50 ml/ha-30 mm
 
Weeds:Scented mayweed 
Rate of Use:
 75 ml/ha- 50 mm
50 ml/ha-30 mm
 
Weeds:Scentless mayweed  
Rate of Use:
 75 ml/ha-30 mm
50 ml/ha-30 mm
 
Weeds:Volunteer oilseed rape  
Rate of Use:
 75 ml/ha-80 mm
50 ml/ha-60 mm
 
Tank cleaning procedure:
To avoid subsequent injury to crops other than cereals all spraying equipment must be thoroughly cleaned both inside and outside. All Clear Extra spray cleaner as follows:
1. Immediately after spraying drain the tank completely. Any contamination on the outside of the spraying equipment should be removed by washing with clean water.
2. Rinse inside the tank with clean water and flush through booms and hoses using at least one tenth of the spray tank volume. Drain tank completely.
3. Half fill the tank with clean water and add the ammonium based cleaner at the recommended rate. Agitate and then briefly flush through the booms and hoses with the cleaning solution. Top up with water making sure the tank is completely full and allow to stand for 15 minutes with agitation. Flush the booms and hoses and drain tank completely.
4. Nozzles and filters should be removed and cleaned separately with the ammonium based cleaning solution containing 50 ml of the ammonium based cleaner per 10 litres of water.
5. Rinse the tank with clean water and flush through the booms and hoses using at least one tenth of the spray tank volume. Drain tank completely.
6. For disposal of washings follow the Code of Practice for Using Plant Protection Products. Do not spray on to sensitive crops or land intended for cropping with sensitive crops.
Note: If it is not possible to drain the tank completely, step 3 must be repeated before going on to step 4.
Registered for culturesRateBBCH
Spring barley0.15 l13 - 39
Winter wheat0.15 l13 - 39
Winter barley0.15 l13 - 39
Winter oats0.15 l13 - 39
Winter triticale0.15 l13 - 39
Winter rye0.15 l13 - 39
Spring oats0.15 l13 - 39
Spring wheat0.15 l13 - 39