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ARBUS 270
Spray application technology
• The success of an application not only de-
pends of good equipment and correct use
of chemicals. Depends also on field fac-
tors, such as specialized orientation.
• Among these factors, we consider some
concepts that should be part of an evalua-
tion criteria so that the positive results are
reached within a chemical control program
of biological agents (diseases, plagues and
weeds).
Factors like:
• Right moment;
• Safety during application;
• Correct dosage;
• Good coverage;
• Operational conditions of the machine;
• Well trained operator.
Right moment
Consists in choosing the ideal moment accor-
ding to the characteristics of the chemicals
and also field conditions, such as:
• Level of plague infestation, diseases or
weeds;
• E
stágio de infecção das doenças;
• Estágio de desenvolvimento das plantas
daninhas;
• Condições climáticas.
Safety during application
• The maintenance of safe conditions for
people, animals and the environment is
fundamental. The use of personal protec-
tive equipment is mandatory during the
application of the chemicals.
• Avoid applying when temperatures are abo-
ve 30° C (depending on the chemical pro-
duct) and relative air humidity lower than
50%, winds with unpredictable speeds ( ma-
ximum velocity 10 km/hour) and direction.
Correct dosage
• It is fundamental, for any type of appli-
cation, the correct maintenance of the
chemicals dosage for the duration of the
spraying process.
• This is possible if good equipment is avai-
lable and the chemicals is correctly cali-
brated before starting the application.
• The calibration can be obtained thru
practical methods or via calculations
(refer to the instructions regarding the
sprayers calibration, which can be found
on the “CALIBRATION OF SPRAY” page).