The data from spray tests were collected and analysis of variance (ANOVA) on spray drift
was carried out, using a mathematical model for a completely randomized design.
Both the EPA and the State Department have acknowledged that unintentional spraying of legal crops and natural vegetation, due to spray drift
, is likely to kill plants downwind of coca fields.
However, weeds growing among established plants are better removed by hand, as spray drift
can occur with even the slightest breeze killing nearby plants.
Hadar (1991) reported that air-assisted spraying is an effective method of improving spray penetration and reducing spray drift
She continues, "If these pesticides are capable of killing fish in minute quantities, just what do people think is happening when their children inhale toxic spray drift
or play on the grass near potato fields?
has also made available a new educational kit that allows in-depth training on tuning up sprayers, selecting proper spray nozzles, and managing spray drift
Old and new flower beds and borders were converted to drip irrigation, which eliminated spray drift
Treat with a selective herbicide like Spectracide Weed Stop for Lawns by saturating any unwanted foliage, but be careful not to let the spray drift
onto a beloved begonia or a dazzling daisy.
Several of the papers address the problem of spray drift
by evaluating the effect of tank mix drift control adjuvants on spray droplet size, the spray exit angle and droplet velocity of different flat fan nozzles, and the influence of adjuvant type and airspeed on spray droplet size in the presence of a formulated glyphosate product.
Additional tests in an apple orchard have shown that the new sprayer reduces spray loss beyond the tree canopy by 40% to 87%, reduces airborne spray drift
by up to 87%, and reduces spray loss on the ground by 68% to 93%.
review: the extent to which a formulation can contribute to spray drift
Pesticide spray drift
is grossly misunderstood and under-reported.