The killer effect on insect eggs can be summarized as follows:
1 - The oil covers the eggs in the form of a thin layer and prevents the exchange of natural gas.
2 - The oil may cause hardening of the egg shell and prevents hatching.
3. The oil may cause imbalance in the water balance.
4 - may dissolve the oil or cause the soft envelope egg interfering in the development of embryo Embryo.
5 - may spread oil inside the egg and cause the accumulation of protoplasm, or interfere with the biological systems or in the act of enzymes.
6 - Oil may cause the killing of insect when contact with him after hatching in a weak condition. In general, the prevailing belief is that the oil act is mechanical or physical rather than chemically interfering with the normal exchange of gases. What supports the mechanical act of oil for the chemical act is that the low-activity paraffin oils have a toxic effect on the eggs that is much larger than the unsaturated and active ingredients In their interaction.
Petroleum oils occur in dysfunction of the respiratory system, in half-wing eggs. Such as insect O. Fasciatus. Breathing in this type occurs through false vents located at the end of the Koreans. When these openings are covered with oil, the embryo dies. A study of the effect of oil-oil treatment on Oriental fruit moth has shown that the treatment of oil decreases the respiratory rate. Prolonging the period of lowering the respiratory rate increases the mortality rate. These studies were based on removal of oil from eggs at different intervals after treatment, by immersing them in a non-harmful solvent. From these studies, the physiological effects can be deduced as follows:
1. Decrease in respiratory rate leads to death.
2 - the period of low respiratory rate of the amount of oil deposits on the crust of Koreans.
3 - The effect of lethal without oil penetration during the Koreans can be evidence of the reduction of the negative effect of oil when removed from eggs after treatment.
From the above, it is possible to deduce the overlap of the external precipitation of the oil with the gas exchange process, leading to death. These studies did not explain whether death was due to lack of oxygen, or to toxicity due to increased carbon dioxide, although the first reason was the most acceptable.
1 - The oil covers the eggs in the form of a thin layer and prevents the exchange of natural gas.
2 - The oil may cause hardening of the egg shell and prevents hatching.
3. The oil may cause imbalance in the water balance.
4 - may dissolve the oil or cause the soft envelope egg interfering in the development of embryo Embryo.
5 - may spread oil inside the egg and cause the accumulation of protoplasm, or interfere with the biological systems or in the act of enzymes.
6 - Oil may cause the killing of insect when contact with him after hatching in a weak condition. In general, the prevailing belief is that the oil act is mechanical or physical rather than chemically interfering with the normal exchange of gases. What supports the mechanical act of oil for the chemical act is that the low-activity paraffin oils have a toxic effect on the eggs that is much larger than the unsaturated and active ingredients In their interaction.
Petroleum oils occur in dysfunction of the respiratory system, in half-wing eggs. Such as insect O. Fasciatus. Breathing in this type occurs through false vents located at the end of the Koreans. When these openings are covered with oil, the embryo dies. A study of the effect of oil-oil treatment on Oriental fruit moth has shown that the treatment of oil decreases the respiratory rate. Prolonging the period of lowering the respiratory rate increases the mortality rate. These studies were based on removal of oil from eggs at different intervals after treatment, by immersing them in a non-harmful solvent. From these studies, the physiological effects can be deduced as follows:
1. Decrease in respiratory rate leads to death.
2 - the period of low respiratory rate of the amount of oil deposits on the crust of Koreans.
3 - The effect of lethal without oil penetration during the Koreans can be evidence of the reduction of the negative effect of oil when removed from eggs after treatment.
From the above, it is possible to deduce the overlap of the external precipitation of the oil with the gas exchange process, leading to death. These studies did not explain whether death was due to lack of oxygen, or to toxicity due to increased carbon dioxide, although the first reason was the most acceptable.
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Poison