In New York City there are fifty-one different types of mosquitoes. Most mosquitoes do not transmit disease and some do not bite humans at all. Some mosquitoes have the ability to spread diseases like West Nile virus. From April 1 through October 31, the city monitors mosquito populations and conducts activities to reduce the number of mosquitoes.
Monarch butterfly eggs are somewhat difficult to find in the wild. Since it only takes 3-5 days for eggs to hatch, timing is crucial. The best sign is to watch for adult Monarchs stopping at milkweed plants. A female will usually lay only one egg per milkweed plant to ensure enough food for each larva.onarch butterfly eggs are somewhat difficult to find in the wild. Since it only takes 3-5 days for eggs to hatch, timing is crucial. The best sign is to watch for adult Monarchs stopping at milkweed plants. A female will usually lay only one egg per milkweed plant to ensure enough food for each larva.
Maturation. With many species of butterfly the eggs need to mature within the female for between 3-6 days before egg laying commences. Once this period has elapsed, oviposition activity is controlled at least partially by the butterfly's inbuilt biological or circadian clock.Hence she will only lay her eggs at a particular time of day, during which her activities adhere to a rest-feed-fly-oviposit sequence.nce this period has elapsed, oviposition activity is controlled at least partially by the butterfly's inbuilt biological or circadian clock. Hence she will only lay her eggs at a particular time of day, during which her activities adhere to a rest-feed-fly-oviposit sequence.