Integrated pest management

Source: Wikipedia, the free encyclopedia.
An IPM boll weevil trap in a cotton field (Manning, South Carolina).

Integrated pest management (IPM), also known as integrated pest control (IPC) is a broad-based approach that integrates both

ecologists have urged the adoption of IPM pest control since the 1970s.[2] IPM allows for safer pest control.[clarification needed
]

The introduction and spread of invasive species can also be managed with IPM by reducing risks while maximizing benefits and reducing costs.[3][4][5]

History

Shortly after World War II, when synthetic

Cotton Belt were advocating a similar approach. Under this scheme, insect control was "supervised" by qualified entomologists and insecticide applications were based on conclusions reached from periodic monitoring of pest and natural-enemy populations. This was viewed as an alternative to calendar-based programs. Supervised control was based on knowledge of the ecology and analysis of projected trends in pest and natural-enemy populations.[citation needed
]

Supervised control formed much of the conceptual basis for the "integrated control" that University of California entomologists articulated in the 1950s. Integrated control sought to identify the best mix of chemical and biological controls for a given insect pest. Chemical insecticides were to be used in the manner least disruptive to biological control. The term "integrated" was thus synonymous with "compatible." Chemical controls were to be applied only after regular monitoring indicated that a pest population had reached a level that required treatment (the economic threshold) to prevent the population from reaching a level at which economic losses would exceed the cost of the control measures (the economic injury level).[citation needed]

IPM extended the concept of integrated control to all classes of pests and was expanded to include all tactics. Controls such as pesticides were to be applied as in integrated control, but these now had to be compatible with tactics for all classes of pests. Other tactics, such as host-plant resistance and cultural manipulations, became part of the IPM framework. IPM combined entomologists,

nematologists
and weed scientists.

In the United States, IPM was formulated into national policy in February 1972 when President Richard Nixon directed federal agencies to take steps to advance the application of IPM in all relevant sectors. In 1979, President Jimmy Carter established an interagency IPM Coordinating Committee to ensure development and implementation of IPM practices.[7]

Perry Adkisson and Ray F. Smith received the 1997 World Food Prize for encouraging the use of IPM.[8]

Applications

IPM is used in

resistance management.[9][10][11]

Principles

An American IPM system is designed around six basic components:[12]

An IPM regime can be simple or sophisticated. Historically, the main focus of IPM programmes was on agricultural insect pests.

community gardens. Predictive models have proved to be suitable tools supporting the implementation of IPM programmes.[17]

Process

IPM is the selection and

organic gardening are generally safer than synthetic pesticides, they are not always more safe or environmentally friendly than synthetic pesticides and can cause harm.[21] For conventional farms IPM can reduce human and environmental exposure to hazardous chemicals, and potentially lower overall costs.[citation needed
]

environmental risks and 4) efficacy.[22]

Mistaken identification of a pest may result in ineffective actions. E.g., plant damage due to over-watering could be mistaken for fungal infection, since many fungal and viral infections arise under moist conditions.

Monitoring begins immediately, before the pest's activity becomes significant. Monitoring of agricultural pests includes tracking soil/planting media fertility and water quality. Overall plant health and resistance to pests is greatly influenced by pH, alkalinity, of dissolved mineral and oxygen reduction potential. Many diseases are waterborne, spread directly by irrigation water and indirectly by splashing.

Once the pest is known, knowledge of its lifecycle provides the optimal intervention points.[23] For example, weeds reproducing from last year's seed can be prevented with mulches and pre-emergent herbicide.[citation needed]

Pest-tolerant crops such as

soybeans may not warrant interventions unless the pests are numerous or rapidly increasing. Intervention is warranted if the expected cost of damage by the pest is more than the cost of control. Health hazards may require intervention that is not warranted by economic considerations.[citation needed
]

Specific sites may also have varying requirements. E.g., white clover may be acceptable on the sides of a tee box on a

fairway where it could confuse the field of play.[24]

Possible interventions include mechanical/physical, cultural, biological and chemical. Mechanical/physical controls include picking pests off plants, or using netting or other material to exclude pests such as birds from grapes or rodents from structures. Cultural controls include keeping an area free of conducive conditions by removing waste or diseased plants, flooding, sanding, and the use of disease-resistant crop varieties.[18] Biological controls are numerous. They include: conservation of natural predators or augmentation of natural predators, sterile insect technique (SIT).[25]

Augmentation, inoculative release and inundative release are different methods of biological control that affect the target pest in different ways. Augmentative control includes the periodic introduction of predators.[26][27][28][29][30] With inundative release, predators are collected, mass-reared and periodically released in large numbers into the pest area.[31][32][33] This is used for an immediate reduction in host populations, generally for annual crops, but is not suitable for long run use.[34] With inoculative release a limited number of beneficial organisms are introduced at the start of the growing season. This strategy offers long term control as the organism's progeny affect pest populations throughout the season and is common in orchards.[34][35] With seasonal inoculative release the beneficials are collected, mass-reared and released seasonally to maintain the beneficial population. This is commonly used in greenhouses.[35] In America and other western countries, inundative releases are predominant, while Asia and the eastern Europe more commonly use inoculation and occasional introductions.[34]

The sterile insect technique (SIT) is an area-wide IPM program that introduces sterile male pests into the pest population to trick females into (unsuccessful) breeding encounters, providing a form of birth control and reducing reproduction rates.[25] The biological controls mentioned above only appropriate in extreme cases, because in the introduction of new species, or supplementation of naturally occurring species can have detrimental ecosystem effects. Biological controls can be used to stop invasive species or pests, but they can become an introduction path for new pests.[36]

Chemical controls include

green pest management
IPM program uses pesticides derived from plants, such as botanicals, or other naturally occurring materials.

Pesticides can be classified by their modes of action. Rotating among materials with different modes of action minimizes pest resistance.[18]

Evaluation is the process of assessing whether the intervention was effective, whether it produced unacceptable side effects, whether to continue, revise or abandon the program.[37]

Southeast Asia

The Green Revolution of the 1960s and '70s introduced sturdier plants that could support the heavier grain loads resulting from intensive fertilizer use. Pesticide imports by 11 Southeast Asian countries grew nearly sevenfold in value between 1990 and 2010, according to FAO statistics, with disastrous results. Rice farmers become accustomed to spraying soon after planting, triggered by signs of the leaf folder moth, which appears early in the growing season. It causes only superficial damage and doesn't reduce yields. In 1986, Indonesia banned 57 pesticides and completely stopped subsidizing their use. Progress was reversed in the 2000s, when growing production capacity, particularly in China, reduced prices. Rice production in Asia more than doubled. But it left farmers believing more is better—whether it's seed, fertilizer, or pesticides.[38]

The brown planthopper, Nilaparvata lugens, the farmers' main target, has become increasingly resistant. Since 2008, outbreaks have devastated rice harvests throughout Asia, but not in the Mekong Delta. Reduced spraying allowed natural predators to neutralize planthoppers in Vietnam. In 2010 and 2011, massive planthopper outbreaks hit 400,000 hectares of Thai rice fields, causing losses of about $64 million. The Thai government is now pushing the "no spray in the first 40 days" approach.[38]

By contrast early spraying kills frogs, spiders, wasps and dragonflies that prey on the later-arriving and dangerous planthopper and produced resistant strains. Planthoppers now require pesticide doses 500 times greater than originally. Overuse indiscriminately kills beneficial insects and decimates bird and amphibian populations. Pesticides are suspected of harming human health and became a common means for rural Asians to commit suicide.[38]

In 2001, scientists challenged 950 Vietnamese farmers to try IPM. In one plot, each farmer grew rice using their usual amounts of seed and fertilizer, applying pesticide as they chose. In a nearby plot, less seed and fertilizer were used and no pesticides were applied for 40 days after planting. Yields from the experimental plots was as good or better and costs were lower, generating 8% to 10% more net income. The experiment led to the "three reductions, three gains" campaign, claiming that cutting the use of seed, fertilizer and pesticide would boost yield, quality and income. Posters, leaflets, TV commercials and a 2004 radio soap opera that featured a rice farmer who gradually accepted the changes. It didn't hurt that a 2006 planthopper outbreak hit farmers using insecticides harder than those who didn't. Mekong Delta farmers cut insecticide spraying from five times per crop cycle to zero to one.[citation needed]

The Plant Protection Center and the

rice paddy banks, instead of stripping vegetation, as was typical. The plants attract bees and a tiny wasp that eats planthopper eggs, while the vegetables diversify farm incomes.[38]

Agriculture companies offer bundles of pesticides with seeds and fertilizer, with incentives for volume purchases. A proposed law in Vietnam requires licensing pesticide dealers and government approval of advertisements to prevent exaggerated claims. Insecticides that target other pests, such as Scirpophaga incertulas (stem borer), the larvae of moth species that feed on rice plants allegedly yield gains of 21% with proper use.[38]

See also

References

  1. ^ "AGP - Integrated Pest Management". Retrieved 19 August 2012.
  2. .
  3. .
  4. .
  5. .
  6. ^ Smith, R.F.; Smith, G.L. (May 1949). "Supervised control of insects: Utilizes parasites and predators and makes chemical control more efficient" (PDF). California Agriculture. 3 (5): 3–12. Archived from the original (PDF) on 2012-04-30.
  7. ^ Acosta, EW (1995–2006). "The History of Integrated Pest Management (IPM)". BioControl Reference Center. Archived from the original on 2008-08-07. Retrieved 2007-09-01.
  8. ^ "1997: Smith and Adkisson". The World Food Prize Foundation. Archived from the original on 5 September 2019. Retrieved 15 April 2015.
  9. UC Integrated Pest Management
    (UC IPM). UC Agriculture (UC ANR). March 2009. 3392. Retrieved 2022-09-22.
  10. ^ "Resistance Management". New England Tree Fruit Management Guide. 2018. Retrieved 2022-09-26.
  11. ^ "Resistance Management". CropLife International. 2020. Retrieved 2022-09-26.
  12. ^ "Integrated Pest Management (IMP) Principles". United States Environmental Protection Agency. 2012.
  13. ^ "Resistance: The Facts - History & overview of resistance" (PDF). IRAC. Retrieved 26 February 2020.[permanent dead link]
  14. ^ Bennett, Owens & Corrigan 2010.
  15. ISSN 1612-4766
    .
  16. ^ "IPM Guidelines". UMassAmherst—Integrated Pest Management, Agriculture and Landscape Program. 2009. Archived from the original on 12 March 2012. Retrieved 13 March 2012.
  17. ^ .
  18. ^ a b c Sandler, Hilary A. (2010). "Integrated Pest Management". Cranberry Station Best Management Practices. 1 (1): 12–15.
  19. ^ Handbook of Pest Control, Mallis, Arnold, 10th edition, Hedges, Stoy, Editor. pp.1499-1500
  20. ^ Organic Materials Review Institute, "The OMRI Product List," http://www.omri.org/OMRI_about_list.html approved product list.
  21. ^ Pottorff LP. Some Pesticides Permitted in Organic Gardening. Colorado State University Cooperative Extension.
  22. .
  23. ^ Metcalf, Robert Lee; Luckmann, William Henry (1994). Introduction to Insect Pest Management. New York: John Wiley and Sons, Inc. p. 266.
  24. ^ Purdue University Turf Pest Management Correspondence Course, Introduction, 2006
  25. ^ a b W. Klassen; C.F. Curtis (2005). "1.1". In V.A. Dyck; J. Hendrichs; A.S. Robinson (eds.). Sterile Insect Technique: Principles and Practice in Area-Wide Integrated Pest Management. Netherlands: Springer. pp. 4–28.
  26. ISBN 978-0-203-30256-9. {{cite book}}: |work= ignored (help
    )
  27. ^ Mills NJ, Daane KM (2005) Biological and cultural controls . . . Nonpesticide alternatives can suppress crop pests. California Agriculture 59.
  28. .
  29. ^ Knutson A (2005) 'The Trichogramma Manual: A guide to the use of Trichogramma for Bilogical Control with Special Reference to Augmentative Releases for Control of bollworm and Budworm in Cotton.' (Texas Agricultural Extension Service).
  30. ^ Seaman, Abby. "Integrated Pest Management". University of Connecticut. Archived from the original on 20 February 2012. Retrieved 13 March 2012.
  31. ^ "Understanding Integrated Insect Management Method". James Giner. Retrieved 2013-01-19.
  32. S2CID 84340306
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  33. .
  34. ^
    ISBN 978-0-8243-0141-5. {{cite book}}: |work= ignored (help
    )
  35. ^ .
  36. .
  37. ^ Bennett, Owens & Corrigan 2010, p. 12.
  38. ^
    PMID 23950527
    .

Further reading

External links