Table of Contents
Introduction 18
Section 1 Nutrients 20
pH 22
Boron 33
Calcium 35
Copper 38
Iron 40
Magnesium 42
Manganese 44
Molybdenum 45
Nickel 46
Nitrogen 47
Phosphorous 50
Potassium 52
Silicon 55
Sulfur 56
Zinc 58
Section 2 Pests 60
Ants 62
Aphids 67
Caterpillars 73
Deer 79
Fungus Gnats 83
Gophers 86
Leaf Miners 89
Mealy Bugs and Scale 92
Mites 96
Broad Mites 97
Russet/Hemp Mites 100
Spider Mites 103
Moles 108
Rats 110
Slugs and Snails 113
Thrips 116
Voles 120
White Flies 122
Section 3 Diseases 127
Air Filtration and Sanitation 128
Algae 129
Gray Mold and Brown Mold (Botrytis) 132
Leaf Septoria 136
Powdery Mildew 139
Root Diseases 143
Fusarium 144
Verticillium Wilt 148
Pythium 149
Stem Rots: Damping Off 153
Section 4 Environmental Stresses 156
Airy, Loose Buds 158
Broken Stems and Branches 159
Clones 160
Elongated Seedlings 161
Fluorescent Burn 162
Forcing Flowering 162
Grow Room Conditions 163
Humid Grow Space 163
Hot Grow Room 163
Hermaphrodites 164
Knocked Down Plant 166
Light 166
No Flowers 167
Dark Cycle Interrupted 167
Light Burn 168
Nutrient Burn 168
Pruning 170
Branches 170
Leaves 170
Seed Germination 171
Feminized Seeds 172
Short Growing Season 172
Small Plants Not Growing 172
Stretching 173
Temperature 175
Low Temperature 175
High Temperature 172
Water 179
When to Water 179
Drowning Roots 180
Soils 182
Clay Soils 182
Sandy Soils 182
Dried-Out Soil 182
Under-watering: Wilted Plants 184
Chlorine in Water 184
Hard or Soft Water 185
Sodium in Water 185
Sulfur in Water 185
Water Temperature 186
Weather 186
Cold Spells 186
Cool Weather 187
Humid Weather 188
Rainy Weather 188
Wilting 188
Section 5 Controls 190
Theories and Practice of IPM 192
Alfalfa and Cottonseed Meal 193
Ampelomyces Quisqualis 193
Ant Baits 194
Aphid Midges 195
Bacillus Pumilus 195
Bacillus Subtillis 196
Bacillus Thuringiensis 196
Barley Stray Rafts 198
Beuveria Bassiana 198
Boric Acid 198
Cal-Mag 199
Calcium Nitrate 199
Capsaicin 200
Carbon Dioxide 201
Castor Oil 201
Chelated Minerals 201
Chlolecalciferol (Vitamin D3) 202
Cinnamon Oil and Tea 202
Clove Oil 202
Compost and Compost Tea 203
Copper 204
Coriander Oil 204
Cultural Controls 205
Cream of Tartar 205
D-Limonene 205
Diatomaceous Earth 206
Fertilizers 206
Fish Emulsion and Fish Meal 206
Fumigants 207
Garlic 207
Gliocladium 208
Grapefruit Seed Extract 208
Granite Dust 208
Greensand 208
Guano 208
Gypsum 209
Horticultural Oil 210
Hydrogen Peroxide 211
Hydroponic Micronutrient Products 211
Iron Phosphate 212
Iron Supplements 212
Kelp Supplements 212
Lacewing 213
Lady Beetles 214
Lime 215
Magnesium Sulfate 215
Mechanical Controls 216
Milk 216
Minute Pirate Bugs 217
Mycorrhizae 217
Neem Oil 218
Nitrate Salts 220
Parasitoid Wasps 220
pH Up and pH Down 221
Potassium Bicarbonate 221
Potassium Salts 222
Predator Urine 222
Predatory Mites 222
Predatory Nematodes 223
Pseudomonos 223
Putrescent Eggs 224
Quaternary Amines 225
Rock Phosphate 225
Rotenone 225
Saccharopolyspora Spinosa 226
Sesame Oil 226
Silica and Silicate Salts 227
Silver 228
Soaps 228
Sodium Bicarbonate 228
Streptomyces Griseoviridis 229
Streptomyces Lydicus 229
Sulfur 230
Trichoderma (Beneficial Fungi) 230
Urea 231
UVC Light 231
Vinegar 232
Trichogramma Wasps 232
Wetting Agents 233
Zink Phosphide 233
Zinc Salts 233