1. FFA Judging Contest Plant Pathology Study Guide Revised 8-07

2. The following PowerPoint presentation was assembled by Tom McCutcheon and Mike Shamblin. The information was assembled from various sources publicly available on the Internet. The information was gathered over a period of time and from sources too numerous to list individually. The author would like to acknowledge the assistance of these web sites and publicly express his sincere appreciation for the assistance. The presentation was assembled solely for educational purposes. The author did not or will never receive financial reward for the preparation of the presentation. The presentation may be copied and distributed in parts or in its entirety for educational purposes. If any part of this presentation is distributed, the efforts of Mr. McCutcheon and Mr. Shamblin in assembling the materials must be recognized. The distributor may not receive any financial compensation for this service. Tom McCutcheonMike Shamblin Extension Agent Extension Agent Tom.McCutcheon@mail.wvu.edu Mike.Shamblin@mail.wvu.eduTom.McCutcheon@mail.wvu.eduMike.Shamblin@mail.wvu.edu WVU Monongalia Co. Ext. OfficeWVU Clay Co. Ext. Office 26 Commerce Drive, WesMon PlazaNew Courthouse - Main Street Morgantown, WV 26501P.O. Box 119 (304) 291-7201Clay, WV 25043-0119 FAX (304) 291-7202(304) 587-4267 FAX (304) 587-7054

3. Instructions The next time you left-click the mouse a new window will appear with a picture of a pest. Try to identify it. Once you have decided on what it is or have given up, left- click again and the common name will appear. The next slide will then ask questions about the disease and left-clicking will reveal the answers.

4. Corn - Smut

5. Cut and destroy diseased parts. Crop Rotation. Control

6. Bean - Anthracnose

7. Spray with Bravo Mancozeb Remove infected plants. Control

8. Cucumber - Bacterial Wilt

9. Provado dust Ambush Asana Pounce Rotenone for cucumber beetles. Control

10. Tomato - Anthracnose

11. Use 3 year rotation. Use clean seed. Mancozeb. Copper. Bravo Fungicides. Control

12. Wheat - Scab

13. If following corn, cover residue completely Treat seed with a suitable chemical. Control

14. Tomato – Root Knot Nematode

15. Buy nematode-free plants. Fumigate soil. Control

16. Rye - Ergot

17. Use disease free seed. Cut wild grass hosts. Control

18. Strawberry – Botrytis Rot

19. Renovate Thin old beds Captan Topsin-M Ronilan Control

20. Corn - Rust

21. No practical control Control

22. Potato – Late Blight

23. Spray with Mancozeb. Copper. Bravo fungicides. Control

24. Wheat - Powdery Mildew

25. Resistant Varieties Control

26. Corn–Maize Dwarf Mosaic Virus

27. Use Resistant Varieties Control

28. Tomato – Blossom End Rot

29. Mulch to keep an even water supply Keep calcium high. Control

30. Tomato – Early Blight

31. Spray with Mancozeb Copper Bravo fungicides Control

32. Tomato – Septoria Leaf Spot

33. Use 3 year rotation. Mancozeb. Copper. Bravo fungicides. Control

34. Wheat – Glume Blotch

35. Treat seed with suitable chemical Control

36. Tomato – Late Blight

37. Spray with Mancozeb Copper Terranil Bravo fungicides Control

38. Strawberry – Leaf Blight

39. Spray with Captan Control

40. Apple - Scab

41. Spay with Captan Rubigan + Captan Rubigan + Ziram Control

42. Bean – Bacterial Blight

43. Use disease free seed Crop rotation Control

44. Apple – Sooty Blotch

45. Spray with Captan Remove dead branches Control

46. Peach – Leaf Curl

47. Lime-sulfer in winter time Ferbam Sulfer Wettable Bravo fungicide Control

48. Brambles – Crown Gall

49. Avoid infested soil Remove infected plants Disease free plants Control

50. Apple – Bitter Rot

51. Spray with Captan Remove dead branches Control

52. Cherry – Brown Rot

53. Spray withCaptan + Topsin-M mixed. Control

54. Peaches – Brown Rot

55. Wettable sulfer Benlate plus Captan Benlat plus Sulfer Control

56. Barley - Scald

57. Use resistant varieties Control

58. Apple – Cedar Rust

59. Remove alternate host Rubigan + Captan Rubigan + Ziram Control

60. Strawberry – Leaf Spot

61. Spray with Captan Topsin-M Control

62. Apple – Frog-eye Leaf Spot

63. Spray with Captan Nova + mancozeb Remove diseased parts Control

64. Barley – Covered Smut

65. Treat seed with suitable chemical Control

66. Apple – Fire Blight

67. Remove diseased parts Streptomycin Bordeaux Fixed copper Control

68. Potato – Hopperburn

69. Potato - Hopperburn Spray with Methoxychlor Control

70. Barley – Stripe Rust

71. Treat seed with suitable chemical Control

72. Corn – Northern Leaf Blight

73. Use resistant varieties Control

74. Plum – Brown Rot

75. Spray with Captan Topsin-M mixed. Control

76. Potato – Black Leg

77. Treat seed with Captan Polyram Disease free seed Control

78. Barley – Powdery Mildew

79. Use resistant varieties Control

80. Wheat – Loose Smut

81. Hot water seed treatment Water soak treatment Treat seed with a suitable chemical Control

82. Grapes – Powdery Mildew

83. Bordeaux Fixed copper Bayleton Control

84. Peach - Scab

85. Spray with wettable sulfur + Benlate Control

86. Potato – Leaf Roll

87. Use disease free seed Control

88. Barley – Loose Smut

89. Treat seed with suitable chemical Hot water – long water soak treatment. Control

90. Potato - Scab

91. Acidify soil Use resistant varieties Control

92. Wheat – Stem Rust

93. Use resistant varieties Destroy alternate host Control

94. Wheat – Leaf Rust

95. Use resistant varieties Control

96. Potato – Ring Rot

97. Use disease free seed Control

98. Alfalfa - Leaf Spots

99. Cut foliage in a timely manner Control

100. Grapes - Black Rot

101. Ferbam Captan Bayleton Control

102. Potato - Rhizoctonia

103. No practical control Cultural practice- plant shallow and hill deep. Control

104. Brambles - Anthracnose

105. Spray with lime-sulfur in spring when leaves show 1/2 inch growth; follow with Captan at bloom and two weeks after bloom. Control

106. Oats - Stem Rust

107. Use resistant varieties Destroy alternate host Control

108. Crucifers - Club Root

109. Avoid infested soil Apply lime to soil Control

110. Plum - Brown Rot

111. Spray with Captan and Topsin-M mixed. Control

112. Potato – Early Blight

113. Spray with Mancozeb Copper Bravo fungicides Control

114. Alfalfa - Downy Mildew

115. Cut foliage in a timely manner Control

116. Bramble - Orange Rust

117. Remove infested plants, including roots Control

118. Crucifers - Soft Rot

119. Prevent mechanical and insect injuries to plants Control

120. Clover - Sclerotinia Crown Rot

121. No practical control Control

122. Crucifers - Black Leg

123. Use clean seeds Hot water treatment Rovral Control

124. Grapes - Downy Mildew

125. Bordeaux Fixed copper Control

126. Plum - Black Knot

127. Cut and destroy diseased parts Spray with Captan Control

128. Clover - Rust

129. No practical control Control

130. Potato - Mosaic Virus

131. Use disease free seed Control

132. Clover - Powdery Mildew

133. Use resistant varieties Control

134. Cucurbits - Powdery Mildew

135. Spray with Bravo Control

136. Beans - Mosaic Virus

137. No chemical control. Control weeds Use disease free seed Control

138. Cherry - Leaf Spot

139. Spray with Captan and Topsin-M mixed Control

140. Bean - Rust

141. Sulfur dust Bravo fungicides Resistant varieties. Control

142. Oats - Crown Rust

143. Use resistant varieties Control

144. Oats - Loose Smut

145. Treat seed with suitable chemical Control

146. Tomato - Wilt Diseases

147. Use resistant varieties Control

148. Cucurbits - Anthracnose

149. Mancozeb Bravo fungicides Topsin-M Control

150. Cucurbits - Downy Mildew

151. Bravo fungicides Mancozeb Quadris Control

152. Corn - Southern Leaf Blight

153. Use resistant varieties Control

154. Peach - Yellows

155. Pull and destroy disease trees Control

156. Corn - Grey Leaf Spot

157. Use resistant varieties Control