Related by context. Frequent words. (Click for all words.) 71 brown apple moth 63 invasive weed 63 feral pigs 62 gypsy moths 60 beetle infestation 59 invasive species 59 ash borer 59 gypsy moth 58 CDFA 58 pests 58 moth 57 noxious weed 57 pest 56 Emerald Ash Borer 56 weevils 56 pesticide 55 weevil 55 beetle 55 aerial spraying 55 Africanized bees 54 insect 54 citrus canker 54 insect pests 54 purple loosestrife 54 emerald ash borer 54 feral animals 54 red legged frog 54 fungus 53 bark beetle 53 infestation 53 Asian soybean rust 53 feral hogs 53 beetles 53 infestations 53 pesticides 53 invasives 53 noxious weeds 53 stink bug 53 bovine tuberculosis 52 West Nile Virus 52 mosquito populations 52 West Nile virus 51 invasive weeds 51 nonnative species 51 mosquito abatement 51 genetically engineered crops 51 nematodes 51 disease brucellosis 51 soybean rust 51 GMO crops 51 spider mites 51 fungal disease 51 bovine TB 50 nematode 50 pathogen 50 pine beetle 50 Atrazine 50 aphid 50 pine beetles 50 Invasive species 50 didymo 50 zebra mussel 50 aquatic invasive species 50 genetically modified crops 50 powdery mildew 49 biotech crops 49 bluetongue 49 canker 49 boll weevil 49 fumigant 49 infected mosquitoes 49 thrips 49 bark beetles 49 prairie dogs 49 Vector Control District 49 zebra mussels 49 mosquito 49 catastrophic wildfires 48 phragmites 48 chlorpyrifos 48 citrus trees 48 Pesticide Regulation 48 APHIS 48 mountain lions 48 mosquito borne virus 48 Pesticide 48 stink bugs 48 borers 48 insecticide 48 cheatgrass 48 toxic algae 48 fungal diseases 48 West Nile 47 insects 47 cane toads 47 methyl bromide 47 genetically modified organisms 47 methyl iodide 47 root rot 47 tamarisk 47 orchardists