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.
Step 1: Timeline. Below are the dates on which significant events in the life of these Monarch butterflies occurred. The timing may vary, but it will be helpful to know about how long things take. June 28 -- Monarch butterfly observed laying eggs on milkweed.June 30 -- Five eggs brought inside (photos only show four). July 2 -- Transfer eggs to a fresh leaf in anticipation of the eggs hatching.July 3 -- Two hatched by early morning and the remaining three by noon. July 5 -- Colored bands becoming apparent.tep 1: Timeline. Below are the dates on which significant events in the life of these Monarch butterflies occurred. The timing may vary, but it will be helpful to know about how long things take. June 28 -- Monarch butterfly observed laying eggs on milkweed. June 30 -- Five eggs brought inside (photos only show four).