| China has the largest bamboo species in the world. Phyllostachys praecox is the most popular bamboo in Zhejiang province for its earlier shoot harvest, higher output and higher economic benefits. Due to these reasons, the planting areas of Phyllostachys praecox have been increasing at 15% for recent years. However, irrational cultivation causes the decreasing of the output of bamboo shoots, wireworm should be responsible for the crisis. It has been investigated that wireworm can cause as high as 85% of bamboo forestry regeneration failure, which leads the forestry aging and serious economic damage. Wireworm has become the most significant pest in bamboo forestry. For regional distribution of beetle (mostly in northern china), few researches on bamboo beetles have been done in bamboo beetles. Most studies of bamboo beetle focus on the characteristics of the pest. Therefore, the studies of occurrence mechanism and supervision technology show great significance. The larvar of Melanotus cribricollis—wireworm is the study object in this paper. We study the occurrence of mechanism and supervision as well as management technology by the combination of indoor feeding and field survey.(1)We tried to attract adults of Melanotus cribricollis by the mixture of sugar vinegar, alcohol and water (proportion:6:3:1:10) , solution of bee honey(15%) and water. The taxis of adults to mixture and solution of honey were observed, and adults were less interested water.(2)We chose forestry fields of different cultivation, and surveyed the population of wireworm. We found there was no significant correlation between cultivations and population of wireworm, and there was significant difference between damage rate and population of the pests. The population kept increasing during the shoot harvest period. By testing soil physical and chemical properties, it showed wireworm population was correlated with PH of soil, organic matter content, hydrolyzable N and available P, but all the results are not significant.(3) Wireworms were attracted by germinative seeds,in which different species seeds shows significant differences. therefore, food trapping can reflect acitivity rules of wireworm. On the studies of supervision technology of wireworm, we selected three efficient feeding decoys: wheat, maize and mixture of wheat and maize. The activity rhythm was analyzed by wheat attraction, which shows two activities peaks: Apr and Sep-Oct.(4)The correlation analysis showed the feeding depth of wireworm was related to the temperature of soil, the correlation coefficient between feeding depth and 20cm soil temperature was highest. With the soil temperature increasing to 12.5℃, the activity depth of wireworm was ranged 0 to 10cm(5)In order to find the pesticides with high efficiency against bamboo shoot wireworm and low toxicity to the environment, the toxicities of 8 pesticides against wireworm were tested. Results showed that the order of the toxicities to bamboo shoot wireworm of the 8 insecticides from high to low was 0.1% Fipronil > 3% Phoxime + Carbendazim > 3% Phoxime > 3% Chlorpyrifns > 10%ImidaclopridⅡ>Bt > Beauveria bassiana > defatted seed cake of Camellia oleifera. Field trials were carried out by using 0.1% Fipronil, 3% Phoxime + Carbendazim and 3% Chlorpyrifns. 3% Phoxime + Carbendazim and 3% Chlorpyrifns were effective, 0.1% Fipronil didn't show promise of wireworm control, the reason still needs to study.
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