| Problem | Publication |

Theodor D. Leininger, USDA Forest Service, Bugwood.org
| Canker (Botryosphaeria) | Canker Sampling of Trees and Woody Ornamentals |

Elizabeth Bush, Virginia Polytechnic Institute and State University, Bugwood.org
| Environmental (Winter Drying) | Leaf Scorch and Winter Drying of Woody Plants |

Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org
| Parasitic (Leaf Spot) | Algal Leaf Spot of Southern Magnolia |

Dr Parthasarathy Seethapathy, Tamil Nadu Agricultural University, Bugwood.org
| Powdery Mildew (Oidium) | Powdery Mildew |

USDA Forest Service - Northeastern Area, USDA Forest Service, Bugwood.org
| Wilt (Verticillium) | Verticillium Wilt of Woody Plants |

Chazz Hesselein, Alabama Cooperative Extension System, Bugwood.org
| Poplar Weevil | Yellow-poplar Weevil |

William Fountain, University of Kentucky, Bugwood.org
| Scale | Magnolia Scale |