Tuesday, May 15, 2018

INTEGRATED PEST MANAGEMENT - (PENGURUSAN MAKHLOK PEROSAK BERSEPADU)


BENEFITS OF USING IPM
Control pests in ways that maximize the profitability of crop production while minimizing any potential harm to human health or environmental quality.
Helps producers select and manage pesticides in a manner that can delay or eliminate the development of pesticide resistance.
Helps maintain long term quality and productivity of the soil and other resources, helps protect water resources from pesticide contamination, and addresses consumers’ concerns about food safety and pesticides.

HOW TO USE IPM PRINCIPLES
It is important to realize that IPM is a philosophy or way of thinking about pest control rather than a set of standard practices.

3 S in IPM – Smart, Sensible & Sustainable
-           SMART: Create safer and healthier learning environment by managing pests
-           SENSIBLE: Practical strategies used
-           SUSTAINABLE: Emphasis is on prevention, which makes it economically   
           advantageous.

There are five general principles to implement any successful IPM program.

Principle No. 1: No Silver Bullet
There is no single, best way to control any pest. Over reliance on any method almost always has undesirable economic or ecological results.

What To Do:
All available pest control tools should be considered, especially cultural methods and biological controls.

Principle No. 2: Treat Causes of Pest Outbreaks, Not Symptoms

Stop gap control measures, such as application of pesticides that kill pests after infestations occur, do not solve pest problems in the long run.

What To Do:
It is essential to learn about pest biology, especially environmental conditions that affect pest invasion and survival.

Principle No. 3: Pest Presence Does Not Mean a Pest Problem

Reduce pests only to levels that do not cause economic damage.

What To Do:
Pesticides should be applied only if pest infestations exceed action Thresholds


Principle No. 4: If You Kill the Natural Enemies, You Inherit Their Work Naturally. 
Biological control agents help keep many pest populations at levels that are not damaging.

What To Do:
Induce natural predators population, planting beneficial plants, selection of pesticides to prevent elimination of natural predators.

Principle No. 5: Just in Time vs. Just in Case
Pest sampling and forecasting methods determine pest type and number.

What To Do:
Every field should be regularly monitored (scouted) for weeds, insects, diseases, and nematodes


ECONOMIC INJURY LEVELS AND ECONOMIC THRESHOLDS

An IPM program uses economic injury levels (EIL) and economic thresholds (ETh),
which are numeric guidelines that identify when pesticide use is needed. The EIL is
formally defined as the break even pest density. The economic threshold is the time to
take control action to prevent the pest population from increasing beyond the EIL.

Non-Economic Pests
Non economic pests are those that consistently remain below economic levels.

Occasional Pests
Occasional pests are those species that normally remain below the EIL but sporadically exceed the threshold levels, perhaps 1 year in every 3 or 4.

Severe Pests
Severe pests are the most difficult species to manage. These include many weeds and diseases that occur at high levels every year and cause major damage unless controlled.


FACTORS AFFECTING PESTS POPULATION
-           Climate, weather and crop grown – all crop have natural pest that become
           problematic if conditions are optimal
-           Crop and bio-diversity (habitat to pest predators and parasites)
-           Soil fertility in enhancing crop resistance to pests
-           Preventive and control measures taken.
-           Plant health: stressed or weak plants are more susceptible to pests and disease.







PEST SCOUTING
A key principle of IPM is that pesticides should be used only when field examination or scouting shows that a pest infestation exceeds the economic threshold.
Rule 1: Examine Every Field
Rule 2: Sample Randomly
Rule 3: Sample Across the Entire Field
Rule 4: Take Enough Samples
Rule 5: Keep Records of Scouting Data and Management Actions
















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