Validamycin is a kind of agricultural
antibiotic with good control on disease of fungi such as sheath
blight of rice, wheat and corn without pollution to environment.
It is a water soluble antibiotics produced by Strep. Hygroscopicus
Var. Jinggangensis Yen, which consists of six components named A,
B, C, D, E, F respectively. Validamycin A is the major active
ingredient.
Mechanism:
Validamycin
is a systemic antibiotics for agriculture use to control rice
sheath blight, wheat sheath blight and rice false smut. It can be
absorbed by the cells of the pathogeny fungus as nutrition and
transmitted through the hyphae, whose growth are affect when
contacting with the active ingredient, which make the hyphal top
abnormal and inhibit the growth of the hyphae through inhibiting
the synthesis of inositol which is the essential for the growth of
fungi.
Type
of formulations:
60%
Validamycin A technical powder (TC)
50%
Validamycin A technical powder (TC)
40%
Validamycin A technical powder (TC)
20%
Validamycin soluble powder (SP)
5%
Validamycin A soluble powder (SP)
3%,
5% Validamycin aqueous solution (AS)
Dosage and method of Application (20%
SP):
|
Crops |
Pests |
Dosage |
Methods
of application |
|
|
rice |
rice
sheath blight
rice
false smut |
375-562.5g/hm2 |
Spraying
or
pouring |
|
|
wheat |
sheath
bligh |
375-600g/
hm2 |
spraying |
|
|
Seedling
of cotton,
citrus
and vegetables |
rhizoctonia
rot |
750-1200
times dilution |
spraying |
|
|
maize |
Leaf
blight |
375-600g/
hm2 |
spraying |
|
Caution:
1. It is a moisture-absorbing powder which should be keep dry,
cool ,ventilative and be prevented from sunlight.
2. Keep the water depth in the rice field 3-5cm when spraying for
5-7 days. In sunny day the suitable spraying time is morning or
dusk, in cloudy or rainy day anytime is also suitable, but it is
not recommended to spray when the wind power is stronger than 3
grade.
3. The product can be mixed with many kinds of pesticides. The
per-harvest interval is 14 days.
