fabioclass

PESTS AND DISEASES OF MAIZE AND HOW TO CONTROL THEM


PEST AND DISEASES OF MAIZE

Pests of Maize

(1) Stem borers: The larvae bore holes into young stems and destroy the tissue, leading to low yield or death of the plant.
Control
Spray with insecticides like vetox 85, and practice crop rotation.
(2) Grasshoppers: They eat up the leaves and other soft vegetative parts of the plant.
Control
Spray with appropriate chemicals such as DDT
(3) Maize Weevils: This is a field-to-store pest. Adults and larva bore hole into grains and reduce them to powder.
Control
(i) Fumigate the store with BHC powder or phostoxin tables
(ii) Early harvesting

Diseases of Maize

(1) Corn Smut: It is caused by a fungus (Ustilago madis) which is spread by wind
Symptoms




Symptoms include galls on ears, leaves and tassels which later turn black.

how to Control maize diseases

(i) Destroy diseased plants
(ii) Use resistant varieties
(iii) Treat seeds before planting
(2) Maize rust: It is caused by a fungus (Puccinia polysora). They cause red spots on leaves which eventually die.
Control
(i) Use resistant varieties
(ii) Practice crop rotation
(iii) Practice early planting
(3) Leaf Spot
It is caused by a fungus (Physoderma spp) which is spread by wind.
Symptoms
These include the death of parts of the leaves
Control
(i) Use resistant varieties
(ii) Apply the appropriate fungicide

(4) Maize Streak: It is caused by a virus which is transmitted by a piercing and sucking insect (leaf hopper)
Symptoms
Symptoms include yellow streaking of leaves followed by stunting or deformation
Control
(1) Spray with insecticide to kill vector
(2) Uproot and burn infected plant
(3) Practice early planting






HERE YOU WILL FIND EVERY AVAILABLE TOPICS ABOUT AGRICULTURAL SCIENCE AND BIOLOGY. AND THE LINKS TO THEIR VARIOUS SOURCES.
1. DEVELOPMENT OF AGRICULTURE
2. IMPORTANCE OF AGRICULTURE
3. SUBSISTENCE AGRICULTURE
4. COMMERCIAL AGRICULTURE
5. PROBLEM OF AGRICULTURAL DEVELOPMENT
6. SOLUTIONS TO POOR AGRICULTURAL DEVELOPMENT
7. AGRICULTURAL LAWS AND REFORMS
8. ROLES OF GOVERNMENT IN AGRICULTURAL DEVELOPMENT
9. AGRICULTURAL POLICIES
10. PROGRAM PLANNING IN AGRICULTURE
34.
FORESTRY
35. WILDLIFE CONSERVATION
36. FACTORS AFFECTING LAND AVAILABILITY
37. TOPOGRAPHY
38. SOIL
39. BIOLOGICAL FACTORS
40. SOCIAL-ECONOMIC FACTORS
41. ENVIRONMENTAL FACTORS AFFECTING AGRICULTURAL PRODUCTION
42. CLIMATIC FACTORS AFFECTING AGRICULTURAL PRODUCTION
43. TEMPERATURE
44. RAINFALL
45. WIND
46. SUNLIGHT
47. SOLAR RADIATION
48. BIOTIC FACTOR AND AGRICULTURAL PRODUCTION
49. PESTS
50. BIRDS
51. DISEASES
52. SOIL MICRO-ORGANISMS
53. SOIL PH
54. ROCK FORMATION
55. IGNEOUS ROCK
56. SEDIMENTARY ROCKS
57. METAMORPHIC
58. SOIL AND ITS FORMATION
59. FACTORS OF SOIL FORMATION
60. LIVING ORGANISM
61. PARENT MATERIALS
62. SOIL FORMATION TOPOGRAPHY
63. PROCESS OF SOIL FORMATION
64. WEATHERING
65. PHYSICAL WEATHERING
66. CHEMICAL WEATHERING
67. PRESSURE
68. WATER
73. BIOLOGICAL WEATHERING
74. CHEMICAL AND BIOLOGICAL COMPOSITION OF THE SOIL
75. SOIL WATER
76. MICRO AND MACRO NUTRIENTS
77. SOIL MICRO ORGANISM
78. PROPERTIES OF SOIL
79. SOIL STRUCTURE
80. SANDY SOIL CLAY SOIL LOAMY SOIL
83. SOIL TEXTURE
84. IDENTIFICATION OF SOIL TYPES THROUGH EXPERIMENTS
85. RETENTION OF WATER BY VARIOUS SOIL TYPES
86. DETERMINATION OF SOIL PH REACTION
87. COLORIMETRIC DETERMINATION OF SOIL PH LEVEL
88. PH SOIL TEST
89. PLANT NUTRIENTS
soil improvement techniques
90. MACRO NUTRIENTS IN GENERAL
112. THE MAINTENANCE OF SOIL FERTILITY
113. CROP ROTATION
114. APPLICATION OF ORGANIC MANURES FARM YARD MANURE APPLICATION OF INORGANIC MANURE
117. LIMING
118. FARMING PRACTICES
119. BUSH BURNING CLEARING
121. FERTILIZER APPLICATION
122. ORGANIC MANURING FARM YARD MANURE
124. HUMUS
125. COMPOST
126. CROP ROTATION
133. FARM POWER AND MACHINERY
134. SOURCES OF FARM POWER
135. HUMAN SOURCE
149. PLOUGHS
142. FIELD MACHINES
157. PLANTERS
164. SIMPLE FARM TOOLS
165. AGRICULTURAL MECHANIZATION
166. THE CONCEPT OF

oppurtunities

ADVANTAGES AND DISADVANTAGES OF MECHANIZATION

ADVANTAGES AND DISADVANTAGES OF MECHANIZATION ADVANTAGES OF MECHANIZED AGRICULTURE Farm mechanization has the following advantages 1. TI...

popular post of all time