The potato tuber moth（PTM）, Phthorimaea operculella（Zeller）, is one of the most economically significant insect pests for potato in both field and storage worldwide. To evaluate the infestation, reduction of potato yield and the control efficacy for PTM, field tests were conducted in two seasons by intercropping of potato as the host plant with maize as a non-host plant of PTM. Three intercropping patterns were tested, which were 2 rows of potatoes with either 2, 3, or 4 rows of maize（abbreviate... 

【文章頁(yè)數(shù)】：12 頁(yè)

【文章目錄】：
1. Introduction
2. Materials and methods
    2.1. Intercropping patterns and field test
    2.2. Sampling methods
    2.3. Data analysis and statistics
3. Results
    3.1. Population of the adult PTM
    3.2. Number of larval mines on potato plants in dif-ferent planting patterns
    3.3. Density of PTM adults from above-ground parts of potato
    3.4. Number of PTM larvae that emerged from the potato tubers after harvest
    3.5. Cumulative proportion of foliage infestation in different planting patterns
    3.6. Species and number of parasitoids trapped by suction sampler in the field
    3.7. Species and number of natural enemies that emerged from potato leaves
    3.8. The overall percent of parasitism
    3.9. Species and number of parasitoids that emerged from the above-ground parts of potato
    3.1 0. Species and numbers of natural enemies of PTM from the tubers
4. Discussion
5. Conclusion


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