Currently, though the rain sometimes fall in Southwest Nigeria , the weather has been relatively very hot lately - the sun rises earlier than usual and sets a bit later than usual.
So how does this concern plant growers? It is likely the water you use for wetting would be too warm if your water source is exposed to the sun. Your water source could be a reservoir, a tank, directly from the well especially if covered, it could be a bore hole, river, pond etc.
A livestock farmer some years ago told me of how his chickens were dying regularly during one such hot period.
They checked and didn't discover any outbreak of diseases. The poultry house was in good hygienic condition and bio- safety measures were being taken before anyone entered the premises.
The owner wasn't always around but due to the challenge he came around more often in bid to investigate the cause of deaths among the poultry flock.
He discovered that since the weather was usually very hot at that period the water in the overhead tank was also very warm.
So when the taps were opened and the water was allowed to flow immediately into the water troughs, the temperature of the water in the troughs were higher than normal.
As chickens are animals, they would start drinking water that was too warm for them and many of them choked and died as a result.
The farm attendant in charge - a staff should not have allowed the water to flow directly into the water troughs but to cool before the water is given to the livestock.
Same applies to plants - before wetting your plants, check that the water temperature is not high. You may just feel with your palms or hands or use a thermometer if you have.
The water temperature should not be too far above room temperature- about 25 degrees Celsius or thereabout. It could be much less - I don't think too cold water has negative effect on plants, do you? Let's find out - research it.
Even without any instrument you will know when the water is too warm by feeling it with your skin.
Wetting with too warm water may lead to wilting of the plant leaves. Other factors may be responsible if you are already experiencing such but better to ensure we are doing the best we can to avoid such problem. DONT WET YOUR PLANTS WITH TOO WARM WATER...
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