Encountered weird spots on my car body & glass: What could be the cause

My car is parked in somewhat low light area of our apartment covered parking, with some dense bushes blocking the back side of parking.

BHPian Bitter_Hitter recently shared this with other enthusiasts:

I have been seeing a weird issue on my car only during summers. The car body and glass area is covered with weird spots as shown in images below. These spots are somewhat semi-hard and don't all go away with a simple wipe of microfibre cloth. They need to be removed with shampoo/waterless wash for clean removal. I have observed these spots on my old car as well as my new car when parked in my apartment parking.

My car is parked in somewhat low light area of our apartment covered parking, with some dense bushes blocking the back side of parking. With the onset of summer, the number of mosquitoes go up significantly in and around the car parking area. I am very positive the mosquitoes are leaving these spots on the car. (They don't seem to be mosquito eggs). The spots are never seen when there are no mosquitoes.

I am frequently behind the society management to frequently have the area sprayed with fog, but looking to see any other permanent solution that can be used in car.

Has anyone seen anything like this? Any suggestions for the same?

Here's what BHPian MotoBlip replied:

That looks like pollen or maybe tree sap droplets, but it's most likely pollen. It takes a bit of effort to wash off, but it won't harm the paint unless it's left on for too long. So I wouldn't worry too much—and that's definitely not mosquito eggs.

Here's what BHPian vedantpatkar17 replied:

My car is always parked near a bunch of trees, and these spots are common on it. I’m not sure, but I guess they’re pollen or something related to the trees. I don’t think they’re related to mosquitoes.

Here's what BHPian AJ56 replied:

It’s likely either pollen or tree sap, avoid using anti mosquito fog very near your paint as it can leave an oil film behind. Pressure wash to remove safely and apply a high quality ceramic coating for ease of cleaning in the future.

Here's what BHPian PaddleShifter replied:

Faced this for three years in Alwar. This is because of the bees (in Alwar Rajasthan) that drop these yellow spots all over the place, including the car.

The solution that I discovered was that there is a fixed path these bees follow and if you can find a clean spot then the car will be spared. Atleast in alwar, these droppings were so severe where I lived, that the whole concerete road had a yellowish spots expect for a few places that helped me find the appropriate parking spot.

Here's what BHPian Solojin replied:

It's probably the mosquito poop. I've faced similar issues with mosquitoes and houseflies on my car as well. There are no permanent solutions to get rid off them completely.

Generally they prefer wet/clean surfaces. I've noticed them after whenever I clean my car and rarely when my car gets covered by dust.
You can use good cleaning agent or vinegar coupled with water to clean these off and wipe them dry with a micro fiber cloth. Using a car cover is another good idea to prevent these in the first place.

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