364.T1 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Fungi Fungi are microscopic plants which lack chlorophyll and conductive tissue. They cause: - Stem rust- Brown rot - Corn smut- Damping off - Powdery mildew

364.T2 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Fungi Life Cycle Spore Production:

364.T3 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Bacteria Bacteria are microscopic single-celled organisms. They cause: - Galls- Scabs - Leaf spots - Systemic disorders - Soft rots

364.T4 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Bacteria Life Cycle Division:

364.T5 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Nematodes Nematodes are very small non-segmented worms. Nematodes cause: - Galls on roots.- Root lesions. - Injured root tips.- Lower yields. - Excessive root branching.- Decreased plant health.

364.T6 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Nematode Excretory Pore Spear Esophagus Gut or Intestine Anus Ovary Vulva Ovary

364.T7 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Nematode Damage This type of nematode feeds and moves outside of roots throughout its life.

364.T8 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Viruses Pathogenic particles which infect higher plants and animals. Viruses can only multiply in living cells. Viruses cause: –Stunting of plants. –Yellow mosaic patterns on leaves. –Flower break. –Vein clearing (chlorosis of leaves)..

364.T9 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Virus Life Cycle Synthesis: ( A virus needs to be inside a living cell to multiply.)

364.T10 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Other Invertebrate Pests Sucking Insects Chewing Insects Mites

364.T11 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Other Invertebrates Pests (cont’d.) SnailSlug Centipede Millipede