1.11k likes | 2.32k Views
Integrated Pest Management IPM. IPM is a sustainable approach to managing pests through biological, cultural, physical and chemical tools in a way that minimizes risks to the community. Integrated Pest Management IPM.
E N D
Integrated Pest ManagementIPM IPM is a sustainable approach to managing pests through biological, cultural, physical and chemical tools in a way that minimizes risks to the community.
Integrated Pest ManagementIPM To understand this concept, it is important to understand the environmental variables around us. What are the variables in your environment?
TRUE or FALSE A typical home garden has more pesticides (acre for acre) on it than a farmer’s field
TRUEor FALSE A typical home garden has more pesticide (acre for acre) in it than a farmer’s field
If a pesticide is natural, it can not harm you. TRUE or FALSE
If a pesticide is natural it can not harm you. TRUE or FALSE
TRUE or FALSE • Since most insects are harmful they should be removed from your yard.
TRUE or FALSE • Since most insects are harmful they should be removed from your yard.
Of all insect species in the world Less than 1% Considered to be pests Beneficial or not considered to be pests (> 99%)
IPM stands for A) Inactive produce markets B) Integrated pest management C) Insects pests and moles D) Industrial pesticide makers
IPM stands for: • Inactive produce markets • Integrated pest management • Insects pests and moles • Industrial pesticide makers
What is IPM??? • IPM (integrated pest management) • is a sustainable approach to managing pests by combining biological, chemical, cultural, and physical tools • in a way that minimizes economic, health, and environmental risks. From: Anonymous. 1994 Integrated Pest Management Practices in 1991 Fruits and Nuts, RTD Updates: Pest Management, USDA-ERS, 8pp.
What is a Pest? A plant or animal that is out of place This includes: Diseases, Weeds, Arthropods, Reptiles, Mammals, etc.
Is this a pest? • That depends if it‘s in your garden or your house?
Does this person have a pest problem? • Depends on the threshold of damage they will put up with
Pest management toolbox Biological control Chemical control Cultural control Physical control
Biological Control • The use of living organisms to control pests • Predators • Parasites • Pathogens
Predators • Kill many prey • often generalists rather than specialists • 200,000 species
Predators Lady Beetle eating an Aphid
Predators A spider mite feeding on a pest, two spotted spider mite
Predators Predaceous stink bug piercing caterpillar
Predators • General Rule • Bigger • Badder • Fewer • Faster Above: syrphid fly on daisy Below: syrphid fly eating an aphid long legged fly eating an aphid
EGG Complete Metamorphosis LARVA ADULT PUPA
Lady Bird Beetle
Predators Lacewing eggs Adult Lacewing Lacewing larvae ready to feed on aphids
Biological Control • The use of living organisms to control pests • Predators • Parasitoids • Pathogens
Parasitoids Unlike parasites which usually have multiple hosts and do not kill their prey, parasitoids are all host specific and always kill their prey.
Parasitoids parasitoid wasp ovipositing its eggs into fly larvae. beet armyworm with exit hole from parasitoid wasp
Parasitoids • Very specialized • Develop from eggs laid in or on host • very stealthy and often small • leave a trail of bodies Healthy aphids Parasitized aphids
A Phorid fly egg hatches and migrates to the ant’s head, where it releases chemicals which decapitate the host
Biological Control • The use of living organisms to control pests • Predators • Parasites • Pathogens
Pathogens • Usually very specific • leave a trail of bodies • may take a few days to provide control (lag time) • kill, reduce reproduction, reduce insect health
Pathogens usually advertised as naturally occurring insect diseases caused by bacteria protozoa viruses and fungi BT Nosema
Chemical control • Should be used as a last resort and with the lowest impact on natural enemies and YOU!
Pest Management Prior to the 2nd World War • Several Approaches • Manual and physical control methods • Cultural control • Biological control • 4. Chemical control (metal & plant derivatives)
Pest Management After World War 2 • Development of nerve gases…discovered to be insecticidal • Discovery of synthetic, organic insecticides Organochlorines (DDT - wide spectrum OP’s (parathion) Carbamates
Widespread Use of Pesticides (1945 - 1980) • By 1980, more than 900 registered insecticides • Insecticides were a popular choice for pest • management because they were: • a. Cheap • b. Effective in small quantities • c. Persistent • d. Broad spectrum • e. Easy to use • f. Fit in calendar spray schedules
Result of widespread insecticide use • Suppression of target pests (at one time, up to 98% • reduction) from single application.