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Apply Lightning herbicide only on selected field corn hybrids (CLEARFIELD corn) warranted by the seed company to possess resistance/tolerance to direct application of certain imidazolinone herbicides. DO NOT apply Lightning to corn hybrids that lack resistance/tolerance to imidazolinone herbicides. Contact your seed supplier, chemical dealer or BASF to obtain information regarding CLEARFIELD corn hybrids.
When applied as directed at the broadcast rate of
1 .28 ounces per acre, Lightning will control or reduce competition from the weeds listed in Table 1 .
NOTE. R — Reduced Competition. DO NOT count cotyledon leaves when determining weed stage of growth.

Mode of Action
Lightning herbicide kills weeds by root and/or foliar uptake and rapid translocation to the growing points. Adequate soil moisture is important for optimum Lightning activity. When adequate soil moisture is present, Lightning will provide residual control of susceptible germinating weeds; activity on established weeds will depend on the weed species and the location of its root system in the soil.

Herbicide Resistance
Naturally occurring biotypes* of some of the weeds listed on this label may not be effectively controlled by this and/or other products with the ALS/AHAS enzyme inhibiting mode of action. Other herbicides with the ALS/AHAS enzyme inhibiting mode of action include the imidazolinones (e.g. Pursuit herbicide, Scepter herbicide, Raptor herbicide, etc.), the sulfonylureas (e.g. Accent, Classic, Permit, Steadfast, Spirit herbicides, etc.) the sulfonamides (e.g. Python herbicide, etc.) and the pyrimidyl benzoates (e.g. Staple herbicide, etc.). If naturally occurring biotypes are present in a field which are resistant to this herbicide, Lightning should be tank mixed or applied sequentially with an appropriate registered herbicide having a different mode of action to ensure control.
*A weed biotype is a naturally occurring individual within a given species that has a slightly different, but distinct genetic makeup from other plants.
Lightning is active against many broadleaf and grass weed species. For long-term weed management, use two herbicides with different modes of action to reduce the potential for weed resistance.

Crop Tolerance
Crops growing under stressful environmental conditions can exhibit various injury symptoms which may be more pronounced if herbicides are used. Corn plants treated with Lightning may exhibit yellowing on new growth. Such effects occur infrequently and are temporary. Normal growth and appearance should resume within 1 to 2 weeks.
Use of Lightning in accordance with label directions is expected to result in normal growth of rotational crops in most situations; however, various environmental and agronomic factors make it impossible to eliminate all risks associated with the use of this product and, therefore, rotational crop injury is always possible. Under some conditions (such as heavy texture soil, high organic matter, low pH or low rainfall) Lightning may cause injury to subsequent planted crops. See the

section of this label for rotation intervals to sensitive crops.

Soil Insecticide Information
All soil insecticides registered for use on corn, including labeled banded or infurrow applications, may be used in combination with Pioneer imidazolinone-resistant (IR) corn hybrids and Lightning. BASF recommends that terbufos and phorate in banded applications may be used in combination with Lightning on imidazolinone-tolerant (IT) corn hybrids. DO NOT use terbufos when Lightning will be applied to imidazolinone-tolerant corn hybrids. BASF has not tested all hybrids in which the imidazolinone-tolerance trait isclaimed and cannot be responsible for factors which are beyond its control, such as growing conditions, environmental conditions, grower practices and the specific genetics of each hybrid tolerance to herbicide and insecticide applications.

For maximum weed control, cultivate 7-10 days following Lightning application. This timely cultivation will enhance residual weed control, especially under dry conditions.

Cleaning Spray Equipment
To avoid injury to sensitive crops, drain and clean application equipment thoroughly using a strong detergent or commercial sprayer cleaner according to the manufacturer's directions and then triple rinse the equipment before and after applying Lightning.

Application Instructions
Lightning is effective in controlling annual weeds in conservation tillage as well as in conventional production systems. Apply Lightning as a postemergence treatment to CLEARFIELD corn when crop and weeds are actively growing. For optimal weed control, apply Lightning herbicide before weeds exceed labeled height. Lightning Application Use Area, Rate and Timing
• Apply Lightning at a broadcast rate of 1.28 ounces per acre. At this broadcast rate, one bottle of Lightning will treat 10.0 acres of CLEARFIELD corn.
• Lightning can be applied postemergence (including _spJke_stage),on_CLEARF|ELD corn hybrids.
• Lightning must be applied with drop nozzles (i.e. postdirected onto weeds) under the following conditions: ifthe corn is greater than 20 inches tall or corn has 6  or more leaf collars (V6), whichever is the more restrictive, or if the crop canopy prevents adequate weed coverage. Delaying a Lightning application for 48 hours from the time temperatures increase above 50° F (i.e. after air temperatures have remained below 50° F for 10 or more hours) will improve weed control and reduce the potential for crop response. Unusually cool temperatures (50° F or less) reduce photosynthesis and transpiration and thus reduce the uptake and translocation (and effectiveness) of Lightning in weeds.Lightning should be applied a minimum of one hour before rainfall or overhead irrigation. 

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