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1 Effect of sex pheromone on moth trapping According to the results of Kasama point moth trapping, with reference to the amount of conventional lamp moth traps, the effect of the sex pheromone moth trapping is obvious, and a certain amount of moth can be trapped. Through this experiment, the use of sex pheromone insect moths to carry out the forecasting of Scarabae, its role can basically replace the original traditional methods of forecasting, preliminarily clarified the application prospects of insect sex pheromones in the forecast of Sichua.
2 Technical discussion on forecasting and forecasting 2.1 Prediction during the occurrence period The time period during peak period is basically consistent with monitoring light trapping moth monitoring results through sex pheromone's trapping observation of S. indica, namely June 2 and June 30 respectively. On July 16 (17), the amount of moths has remained at a high level from the end of June to the end of July. Therefore, through the sex pheromone trap, the same monitoring results as the report lamp trap moth can be achieved.
2.2 Prediction of the amount of occurrence As the test period began in mid-May, the amount of moths generated during the early winter over the winter can not be measured, but the trapping effect of the mid- and late-generation overwintering generation and the seizures of the first-generation II pelican moths is obvious. The amount of moth II is greater than the number of moths under the lamp. Since insect sex pheromone monitoring is a newly-developed work, historical accumulated data are few, and there are not many lessons to be learned, and it is impossible to determine the degree of occurrence. The second to third generations of S. indica larvae are less likely to be trapped due to the smaller number of occurrences, longer generation periods, overlapping generations, and worm age confusion.
There are several advantages to using the pheromone sex pheromone to carry out forecasting work:
First, it is easy to operate, saves labor and energy, and is affected by the external environment and climate; second, it is economical and safe (without installing electric wires, no electricity charges) when compared with report lamps and trap lights; third, it does not kill natural enemies and does not damage them. Crop growth. The forecasting light has a certain influence on the heading of rice in the later period, resulting in the loss of rice yield under the lamp; it also traps some natural enemies of rice pests, and at the same time causes trapped insects under the lamp due to the light trapping effect.
According to the analysis of the test results, the technology for monitoring sex pheromones can be used for the prediction and prediction of the first generation rice borer, and the amount and time of occurrence of the second generation pupae of the first generation can be predicted through the moth trapping amount, so as to correctly guide field control. . However, the application of rice second- and third-generation rice stem borers forecasting needs further experimentation.
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Study on the technology of attracting moths to sex pheromone in rice
Rice stem borer is one of the main insect pests in rice production in Shangyu City. Using forecast lamps to accurately conduct pest forecasting is the premise and basis for doing a good job of prevention and control. We have been predicting the occurrence trend of S. indica by investigating lampworm moths and rice piles (rape crops) to eradicate insects. However, the investigation of insect stripping is time-consuming and difficult. In light years, it is difficult to strip the required number of insects. Therefore, there is a need for a simple, practical, safe, and effective method to predict the occurrence of Sichuania. Insect sex pheromone has been widely used in the monitoring and control of vegetable pests in these years. The effect is obvious. It is economical, efficient, and simple and safe. To explore the effect of sex pheromones in the forecasting of rice borer borer and its application prospects, the author conducted an observation experiment on the sex pheromone insecticides of rice borers in 2011.