Life in ponds. Part 3

In mid-summer pauchpha lays its bigger houses a handful of eggs. She immediately braids their sticky webs, detaya of her silk cocoon. She guards this cocoon, protecting it from different water thieves. From mid-May start to hatch from the pupae of mosquitoes, Kusaka of the genus aedes. Mosquitoes of the genus kuleks at this time can not be found. At a time when the spring generation is already beginning to fly day and night, the mosquito larvae still swimming in the water as larvae. Malaria mosquitoes usually spring generation emerge in early June, or (in the warm spring) at the end of the middle ten days of May. The Soviet government has intensified the fight against malign these insects. Even before the first flight of mosquito pools occupied by the larvae of mosquito, trying all sorts of ways to defuse it. They watered peftyo or kerosene, a film whose larvae suffocate. In the vast swamps, peatland, where, after the development of peat are numerous pit filled with stagnant water, and generally anywhere where large spaces occupied by bodies of water contaminated with the larvae of mosquito, water is sprinkled with powder toxic Paris green. Do it or hand sprayer, or flying with the infected places planes. The larvae eat the powder deposited on water, like eat all the microscopic particles that are in the surface film of water, poisoned and die. After a successful dust from airplanes often are killed without exception the whole army of larvae, and the next flight of mosquitoes - vectors of malaria infection - in this reservoir will not happen. No mosquitoes Malaria people do not become ill. The area freed from mosquitoes for malaria is healthy. In large puddles and ponds in the last third of the spring appears countless tadpoles grass frogs. Upon emerging from the eggs, they stick to water plants and stems of submerged plants, and some time hanging motionless until it get stronger. Then begin to move and swim from one place na more. At this time, they feed almost exclusively on small algae and microscopic sessile animals at underwater objects. Growing up, they become more lively and hungry and starting to eat, besides plant foods, different animals, dead bodies of snails and fish, which are in different places at the bottom of ponds. Last spring begins laying eggs in green frogs. Shores of ponds and backwaters of rivers at night, begin to resound loud concerts males. Continue to spawn moor frog, newts and toads.