Agricultural Plant Pest Control
Category 1A- Missouri
Corn illnesses
Ear and kernel rots of corn- 2 businesses - ANS-● Storage fungi
● Field fungi
Corn sicknesses
Ear and kernel rots of corn- Field fungi - ANS-● Field fungi invade the kernels before harvest
whilst the corn remains within the field and can affect the appearance and first-class of the
kernels.
● Usually harm due to area fungi happens before harvest and may be detected by habitual
inspection of corn fields.
● It does now not keep to increase in storage if the grain is stored at proper moisture content
and temperature
Corn sicknesses
Ear and kernel rots of corn- Field fungi Examples - ANS-● Alternaria
● Cladosporium
● Aspergillus
● Penicillium
● Diplodia
● Fusarium
● Gibberella
● Aspergillus flavus
Corn sicknesses
Ear and kernel rots of corn- Storage fungi - ANS-● Storage fungi invade grain or seeds for the
duration of garage and they will now not be present to any severe quantity before harvest. A
small quantity of inoculum can be gift as dormant spores on the out of doors of the kernels or as
dormant mycelium below the pericarp of a few kernels.
● Under unsuitable storage conditions this small amount of inoculum can growth rapidly leading
to good sized troubles. The development of storage fungi in stored grain is motivated with the
aid of the moisture content and temperature of the grain, the duration of time the grain is stored
and the quantity of insect or mite activity inside the grain.
Corn illnesses
Ear and kernel rots of corn- Storage fungi Examples - ANS-● Species of Aspergillus
● Species of Penicillium
, Corn illnesses
Foliage illnesses of corn - ANS-● There are a number of fungi and a few bacteria which cause
foliage corn sicknesses. These numerous foliar pathogens cause leaf spots, leaf blights, and
similar signs on corn.
● Symptoms may additionally variety from small oval to elliptical water-soaked lesions with
Holcus leaf spot to the long elliptical grayish-inexperienced or ta n lesion of the northern corn
leaf blight.
Corn sicknesses
Gray leaf spot - ANS-● Tends to supply light brown to tan, lengthy slim rectangular lesions
restrained with the aid of leaf veins.
Corn illnesses
Management of corn foliage illnesses have to include the subsequent: - ANS-● Planting
sickness-resistant corn hybrids
● Rotating plants with at least three hundred and sixty five days out of corn
● Managing corn residues
● Applying foliar fungicides if warranted
Corn diseases
Management of stalk rots of corn need to include the following: - ANS-● Selecting hybrids with
properly stalk energy and accommodations traits
● Planting at encouraged plant populations for that hybrid
● Following proper fertility practices
● Avoiding or minimizing stress to corn (especially for the duration of pollination and grain fill)
● Harvesting in a timely way
Corn illnesses
Management alternatives for corn nematodes ought to include the subsequent: - ANS-●
Fertilizing in keeping with soil test tips due to the fact corn affected by fallacious fertility is more
liable to damage from nematodes
● Maintaining goo d weed manipulate
● Rotating to a crop apart from corn in fields with nematode troubles
Corn illnesses
Miscellaneous corn illnesses - ANS-Disease common call Pathogen type
● Crazy pinnacle ...........................................Fungus Corn
● Smut .....................................................Fungus Maize dwarf
● Mosaic..................................................Virus Stewart's
● Wilt........................................................Bacteria
Corn sicknesses
Category 1A- Missouri
Corn illnesses
Ear and kernel rots of corn- 2 businesses - ANS-● Storage fungi
● Field fungi
Corn sicknesses
Ear and kernel rots of corn- Field fungi - ANS-● Field fungi invade the kernels before harvest
whilst the corn remains within the field and can affect the appearance and first-class of the
kernels.
● Usually harm due to area fungi happens before harvest and may be detected by habitual
inspection of corn fields.
● It does now not keep to increase in storage if the grain is stored at proper moisture content
and temperature
Corn sicknesses
Ear and kernel rots of corn- Field fungi Examples - ANS-● Alternaria
● Cladosporium
● Aspergillus
● Penicillium
● Diplodia
● Fusarium
● Gibberella
● Aspergillus flavus
Corn sicknesses
Ear and kernel rots of corn- Storage fungi - ANS-● Storage fungi invade grain or seeds for the
duration of garage and they will now not be present to any severe quantity before harvest. A
small quantity of inoculum can be gift as dormant spores on the out of doors of the kernels or as
dormant mycelium below the pericarp of a few kernels.
● Under unsuitable storage conditions this small amount of inoculum can growth rapidly leading
to good sized troubles. The development of storage fungi in stored grain is motivated with the
aid of the moisture content and temperature of the grain, the duration of time the grain is stored
and the quantity of insect or mite activity inside the grain.
Corn illnesses
Ear and kernel rots of corn- Storage fungi Examples - ANS-● Species of Aspergillus
● Species of Penicillium
, Corn illnesses
Foliage illnesses of corn - ANS-● There are a number of fungi and a few bacteria which cause
foliage corn sicknesses. These numerous foliar pathogens cause leaf spots, leaf blights, and
similar signs on corn.
● Symptoms may additionally variety from small oval to elliptical water-soaked lesions with
Holcus leaf spot to the long elliptical grayish-inexperienced or ta n lesion of the northern corn
leaf blight.
Corn sicknesses
Gray leaf spot - ANS-● Tends to supply light brown to tan, lengthy slim rectangular lesions
restrained with the aid of leaf veins.
Corn illnesses
Management of corn foliage illnesses have to include the subsequent: - ANS-● Planting
sickness-resistant corn hybrids
● Rotating plants with at least three hundred and sixty five days out of corn
● Managing corn residues
● Applying foliar fungicides if warranted
Corn diseases
Management of stalk rots of corn need to include the following: - ANS-● Selecting hybrids with
properly stalk energy and accommodations traits
● Planting at encouraged plant populations for that hybrid
● Following proper fertility practices
● Avoiding or minimizing stress to corn (especially for the duration of pollination and grain fill)
● Harvesting in a timely way
Corn illnesses
Management alternatives for corn nematodes ought to include the subsequent: - ANS-●
Fertilizing in keeping with soil test tips due to the fact corn affected by fallacious fertility is more
liable to damage from nematodes
● Maintaining goo d weed manipulate
● Rotating to a crop apart from corn in fields with nematode troubles
Corn illnesses
Miscellaneous corn illnesses - ANS-Disease common call Pathogen type
● Crazy pinnacle ...........................................Fungus Corn
● Smut .....................................................Fungus Maize dwarf
● Mosaic..................................................Virus Stewart's
● Wilt........................................................Bacteria
Corn sicknesses
