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Simazine 4L is a preemergence herbicide that provides effective broad-spectrum control of a wide range of annual and perennial grasses and broadleaf weeds in a variety of crops. This formulation contains 41.9% Simazine which is effective in controlling troublesome weeds such as barnyardgrass, chickweed, carpetweed, crabgrass, lambsquarters, downy brome, fall panicum, filaree, fireweed, foxtail species, goosegrass, henbit, ragweed, wild oats, witchgrass, and more. Generally, it is applied before emergence of weeds or following weed growth removal. Rainfall or irrigation is required to help penetrate it into the root zone. This liquid formulation may tank-mixed with other herbicides for enhanced efficacy and performance. Available in a 2.5-gallon jug.
Control Center Sims 4l
BLUEBERRIES AND CANEBERRIES (Blackberries, boysenberries, loganberries, raspberries): Apply 2-4 qts. per acre in the spring or apply a split application of 2 qts. per acre in the spring plus 2 qts. per acre in the fall. Apply in a minimum of 40 gals. of water per acre. On plantings less than 6 months old, use % of the above rate. To control quackgrass, apply 4 qts, per acre in the fall or split the application applying 2 qts. per acre, in the fall and 2 qts, per acre in the spring, when quackgrass is actively growing. Do not apply when fruit is present or illegal residues may result.
Florida (Grapefruit and oranges only): Apply 4 qts. SIMAZINE 4L to weed-free soil during the spring and/or fall to control weeds expected to emerge during these peri.ods. Apply prior to emergence of weeds or if weeds' have emerged, apply in tank mixture with a contact herbicide. Use caution to keep the treatment off the foliage, fruit or trunk of citrus trees. For control of difficult species, such as balsamapple vine and spanishneedles, and partial control of honeyvine milkweed, apply B qts. of SIMAZINE 4L as a single application in the spring as a 50?nd application to the grove acre: Apply in the spring growing season between January and April. Do not make a fall SIMAZINE 4L application if this treatment was used in the.spring. When emerged weeds are present, apply SIMAZINE 4L in a tank mix with a labeled contact herbicide. Follow all directions, precautions, limitations, etc. on the tank mix products. Do not apply more than 4 qts./acre per calendar year.
STRAWBERRIES (Apply only in Oregon and Washington): For control of chickweed, groundsel, mustard, and shepherdspurse, apply broadcast 1 qt. per acre. In fields where overhead irrigation is used to activate this product, apply after harvest at time of bed renovation. In fields where overhead irrigation is not available, apply during early October through November. To avoid crop injury, make only 1 application per growing season. Do not apply within 4 months after transplanting.
WALNUTS: Apply 2-4 qts. per acre. Do not apply to sandy soil. Leveling and furrowing operations after application will lessen effectiveness of weed control. Do not apply when nuts are on the ground or illegal residues may result.
SIMAZINE 4L plus Gramoxone Extra tank mix combinations are effective in apple, peach and pear orchards for killing existing vegetation and for residual control of the annual broadleaf and grass weeds listed under General Information. This combination is also effective for top kill and suppression of perennial weeds. Apply the rates shown in the following table as a tank mix in 50-200 gals. of water per acre to the orchard floor avoiding contact with fruit, foliage or stems. Apply when the weeds and grasses are succulent and the new growth is from 1-6 inches tall. Since Simazine enters weeds mainly through their roots, rainfall or irrigation is needed to move it into the root zone.
Simazine 4L Herbicide is not labeled for use on Fescue turfgrass as the product is only labeled for use in warm-season grasses. A great product for use in Fescue turf for pre-emergent control is Prodiamine 65 WDG.
With a wide-open aperture, the center of the frame image quality is reasonable and similar over the entire focal length range.Of course, f/7.1 at the long end is significantly narrower than f/4 at the wide end.Stop down to f/8 at the wide end and ... little change is seen.Taking that description to the next level, little change is seen when stopping down at any focal length until the effects of diffraction begin to show.
In general, lenses are not as sharp in the periphery where light rays must be bent more strongly than in the center.This lens' 24mm corners are somewhat soft, but not bad considering the distortion issue that I'll discuss in more depth later in the review.The corners throughout the balance of the range have decent image quality.Stopping down decreases peripheral shading but has little other effect.
Taking the testing outdoors, we next look at a series of center-of-the-frame 100% resolution crop examples.These images were captured using a Canon EOS R with RAW files processed in Canon's Digital Photo Professionalusing the Standard Picture Style and sharpness set to "2" on a 0-10 scale (Note that images from most cameras require some level of sharpening but too-high sharpness settings are destructive to image details and hide the deficiencies of a lens).
Next, we'll look at a comparison showing 100% extreme-top-left-corner crops captured and processed identically to the above center-of-the-frame images.These images were manually focused in the corner of the frame.
One-stop of shading is the amount often used as the visibility number, though subject details provide a widely varying amount of vignetting discernibility.Vignetting can be corrected during post-processing with increased noise in the brightened areas being the penalty, or it can be embraced, using the effect to draw the viewer's eye to the center of the frame.Study the pattern showing in our vignetting test tool to determine how your images will be affected.
Two lens aberrations that are particularly evident when shooting images of stars, mainly because bright points of light against a dark background make them easier to see.Coma occurs when light rays from a point of light spread out from that point, instead of being refocused as a point on the sensor.Coma is absent in the center of the frame, gets worse toward the edges/corners, and generally appears as a comet-like or triangular tail of light which can be oriented either away from the center of the frame (external coma), or toward the center of the frame (internal coma).Coma clears as the aperture is narrowed.Astigmatism is seen as points of light spreading into a line, either sagittal (radiating from the center of the image) or meridional (tangential, perpendicular to sagittal).Remember that lateral CA is another aberration apparent in the corners.
The 24-105 STM's control ring serves dual purposes, also acting as a manual focus ring with a switch toggling the functionality.From a focus ring perspective, this tactilely distinct knurled plastic ring is rather small and is optimally positioned in front of the zoom ring, where it is easy to find.
This lens has a focus-by-wire or electrical manual focus system (vs. a direct gear-driven system) common for STM lenses.The manual focus ring electronically controls the focus of the lens.FTM (Full Time Manual) focusing is supported in AF mode with the camera in One-Shot drive mode (if electronic manual focusing is enabled in the camera menu), but the shutter release must be half-pressed for the focus ring to become active.With the camera in MF mode, the meter must be on/awake for manual focusing to be available.
With electronics driving AF, the rate of focus change caused by the focus ring can be electronically controlled, and it can be variable based on the ring's rotation speed.The R-series cameras enable a linear (non-variable) adjustment speed via the menu, and that option has been my preference.Also, focus adjustment rate can be made ideal for the focus distance and focal length combinations.
The knurled "Control Ring" can be configured for fast access to settings that include aperture, ISO, and exposure compensation.At the throw of a switch, the control ring becomes the focus ring.Both cannot be used at the same time, but there is one less ring to cause confusion.Likely is that most people who buy this lens will seldom (never?) use manual focus.Note that this control ring is smooth, not clicked, as is the current default for the L variants.
Serious broadcasters love redundancy because it increases reliability. Blackmagic Web Presenter includes redundant features to help ensure you stay online. You get dual internet connections, so you can connect to the internet using the built in Ethernet or a tethered phone for 5G or 4G mobile data. Plus the internet automatically switches in case of an outage! Or you can use 2 separate units to stream to both the primary and secondary YouTube servers. With both AC and DC inputs, you can use a broadcast battery pack for redundant power. There are even front panel buttons and menus, plus the Blackmagic Web Presenter Utility software for control.
The information provided in this publication is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination or endorsement is intended and no endorsement by Texas AgriLife Extension Service, Texas AgriLife Research or Texas A&M University is implied.This publication is no substitute for the herbicide product labels! It is intended to serve only as a guide for controlling weeds in pasture and forages. Labeled rates and restrictions change constantly, therefore, consult the product label before use. 2ff7e9595c
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