႐ံုးပတီသီး အစိမ္​းကို အတို႔လုပ္စားတတ္ရင္

႐ံုးပတီသီး အစိမ္​းကို အတို႔လုပ္စားတတ္ရင္

႐ံုးပတီသီး အစိမ္​းကို အတို႔လုပ္စားတတ္ရင္ ဒီပို႔ကို ေက်ာ္မသြားပါနဲ႔ အေရးႀကီးလို႔ပါ ။ကြၽန္ေတာ္ ႐ြာေရာက္ေတာ့ ႐ုံးပတီသီး စိုက္သည့္ ေတာင္သူ တစ္ဦးမွ ေျပာျပသျဖင့္ ထပ္ဆင့္မွ်ေဝျခင္းျဖစ္ပါသည္။

႐ုံးပတီသီး ကို အစိမ္းတို႔စားရတာ ႀကိဳက္သည္ဆိုက ႐ုံးပတီသီး ကို ဆားရည္ျဖင့္ နာရီဝက္ခန႔္ စိမ္ၿပီးမွ စားပါရန္ အႀကံေပးပါသည္။

႐ုံးပတီသီး ႀကိဳက္ေသာ ပိုးမႊား မ်ားတြင္ ေလွးပိုးသည္ ႏွိမ္နင္းရန္ အခက္ခဲဆုံးပိုးျဖစ္၏၊ အပင္ကို ဖ်က္ဆီးေသာ ထိုပိုးသည္ အေကာင္မျမင္ရ၊ ေဆးမ်ိဳးစုံ သုံးေသာ္လည္း ထိုပိုးကို မႏိုင္။

ထို႔ေၾကာင့္ စိုက္ပ်ိဳးေရးဝန္ႀကီးဌာနက တားျမစ္ထားေသာ အႏၵိယ မွလာသည့္ ေဆး တစ္မ်ိဳးကို သုံးၾက၏၊ ထို ေဆး ကို သုံးမွ႐ုံးပတီပင္ကို ဖ်က္ဆီးေသာ ေလွးပိုးကိုႏိုင္၏၊

အပင္သန္၏၊ အသီးလွ၏၊ သို႔ေသာ္ ထို ေဆး ၏ အာနိသင္ကား အလြန္ျပင္းထန္လွ၏၊ ေဆးသုံးစြဲသျဖင့္ ေသေသာ ပိုးေကာင္ကို ငွက္စားက ငွက္ေသ၏၊

ထိုေသေသာ ငွက္ ကို ေခြးကစားမိျပန္က ေခြးေသ၏။ ထိုေဆးအာနိသင္ကား ပိုးေကာင္လည္းေသ၊ ပိုးေကာင္ေသစားေသာ ငွက္ လည္းေသ၊ ငွက္ ေသစားေသာ ေခြးလည္းေသသျဖင့္ သုံးဆင့္ခန႔္ အာနိသင္ျပင္းထန္၏။

ထိုကဲ့သို႔ အာနိသင္ျပင္းထန္ေသာ ေဆး ကို ႏိုင္ငံေတာ္က တားျမစ္ထားၿပီး စိုက္ပ်ိဳးေရး ပညာေပး ေဟာေျပာမႈေတြျပဳလုပ္ပါေသာ္လည္း အရင္းမရႈံးလိုေသာ ေတာင္သူမ်ားက ေမွာင္ခိုဝင္လာလို႔ ရလွ်င္သုံးစြဲမည္သာ ျဖစ္၏။

ထိုအာနိသင္ျပင္းေသာ ေဆးကို ယေန႔ပက္ဖ်န္းၿပီး မနက္ျဖန္ ႐ုံးပတီသီးခူးကာ ၿမိဳ႕တက္ေရာင္းသည္လည္းရွိ၏။ ထို ႐ုံးပတီသီး ကို အစိမ္း စားသုံးမိပါက ေဘးထြက္ဆိုးက်ိဳးကို ခံရမည္ျဖစ္၏။

ထို႔ေၾကာင့္ ႐ုံးပတီသီး ကို အစိမ္းႀကိဳက္ပါက နာရီဝက္ခန႔္ ဆားရည္စိမ္စားသုံးပါရန္ ေတာင္သူဦးႀကီး တစ္ေယာက္၏ ေျပာျပခ်က္အား မွ်ေဝလိုက္ပါသည္။

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Quick-Test Kit for Detecting Pesticide Residues!

Cooperating agencies for this topic:

i. PCARRD (Phil Council for Ag., Forestry and Nat'l Resources Res. Devt.)

Fax: (63 49) 536 0016

E-mail: pcarrd@pcarrd.dost.gov.ph

ii. National Crop Protection Center, UPLB

Los Banos, Laguna, Philippines, 2002-03-01

Pesticide residues in food are hazardous to our health. Determining whether there are pesticide residues in fruits, grains, vegetables, soil and water is important in making our food safe and healthy. To address this concern, quick-test kits have been developed that can detect residues of pesticides, herbicides and fungicides.

These kits can be used in the field, in markets or in the home ( Fig. 1(1237) and Fig. 2(1489)).

Effectiveness

The cost of one test kit is 1,000 times cheaper than the conventional testing technique, based on chemical analysis. The kit can detect levels of residue as low as 0.5 ug in a one-gram sample. This is the normal maximum permissable level of pesticide in fresh food. Instructions on how to prepare the samples and detect the residues are given in the kit.

The kit is handy and easy to use because it does not employ sophisticated equipment. It contains:

A set of glass slides;

A medicine dropper;

Glass test tubes;

An alcohol lamp;

Color chart;

Treated filter papers;

Capillary tubes;

Test solutions; and,

Instructions on how to conduct the test and interpret results.

Results of analysis are obtained quickly: five minutes for insecticides and 30 minutes for fungicides and herbicides. In contrast, the conventional method of testing may take three days to yield a result, and each analysis uses a large amount of organic solvents.

The Technology

Testing Water for Op Residues

To detect residues of organophosphorus (OP) pesticide in water, the following steps are recommended:

1. Fill the test tube with 40 ml of the water to be tested.

2. Add 2 mL methylene chloride;

3. Shake well and let the mixture stand for two minutes;

4. Siphon the off lower layer of the mixture with the medicine dropper;

5. Use the alcohol lamp to heat the water sample, so the original 1mL of extract is concentrated to 0.1 mL. An electric fan can also be used to evaporate some of the water.

6. Treat the paper strips by adding a drop of Solution 1, and allow them to dry.

7. Place five drops of the concentrated extract on treated extract paper strips, using the capillary tube. The drops should be as small as possible.

8. Place the filter paper between glass slides. Heat for one minute. Cool for three minutes and add a drop of Solution 2.

9. Match the resulting color with the color chart.

Testing Fruits and Vegetables for Op Residues

Testing fruits and vegetables for organophosphates involves the following procedure:

Cut the sample into small pieces;

Place about 5 g in a test tube, add 5 mL of acetone and shake.

Pour the acetone extract into another vial.

Repeat steps 5 to 9 as in testing for residues in water.

Other test kits have been developed to detect residues of:

Organophosphate plus carbamate pesticides;

Carbamate pesticides only;

Pyrethroid pesticides;

Herbicides (phenyl urea); and,

Fungicides.

Each kit is accompanied by a set of instructions.

Index of Images

Figure 1 Quick-Test Kits Detect Residues of Pesticides, Herbicides and Fungicides. the Kits May Be Used in the Field, Market Place or at Home

Figure 1 Quick-Test Kits Detect Residues of Pesticides, Herbicides and Fungicides. the Kits May Be Used in the Field, Market Place or at Home

Figure 2 Quick Tests Are Needed to Monitor Pesticide Residues in Vegetables to Be Sold in Markets. Vegetables Containing More Than the Permitted Maximum Levels Can Then Be Taken off the Market before They Are Sold.

Figure 2 Quick Tests Are Needed to Monitor Pesticide Residues in Vegetables to Be Sold in Markets. Vegetables Containing More Than the Permitted Maximum Levels Can Then Be Taken off the Market before They Are Sold.

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Food Processing and Post-Harvest Technology / Food Processing and Post-Harvest Technology , Plant Protection / Insects and Disease ,

Ref:http://www.fftc.agnet.org/library.php?func=view&id=20110717001423