Dataset for: Standard Evaluation Trial for Leaf Miner Fly

Adult females of L. huidobrensis use their ovipositor to make holes on the top and bottom sides of the leaves, causing the production of exudates that feed adult males and females. The larval stage is the most destructive because the mining reduces the photosynthetic ability of the plant. Larval damage in a growing plant follows a well-established pattern: the larvae attack the plant from the bottom, and later the rest of the plant becomes infested as well. The rate and level of infestation of plants are affected by varietal differences, age, and the physiological state of the plant. The procedure for evaluation of advanced clones to Leaf Miner Fly (LMF) resistance involves trials over 2 seasons under moderate and high adult infestation. All evaluation trials include a susceptible local variety as a control. However, in the case of evaluation under high infestation, a resistant variety should be included as well. The LMF population level was monitored to study the population dynamic throughout the experimental exposure. Three readings of the accumulative percentage of foliage damage were made randomly on 5 individuals plants within each experimental plot to determine the level of resistance. Evaluation for Leaf Miner Fly resistance was conducted for 205 advance clones. The results showing different reaction types (susceptible, highly susceptible, resistant, moderately resistant and highly resistant).

L. huidobrensis的雌成虫会利用产卵器在叶片上下表面钻孔，诱导植物产生渗出液，以供雌雄成虫取食。幼虫期是该虫危害最为严重的阶段，因其潜叶钻蛀行为会削弱植株的光合能力。生长植株的幼虫危害呈现出明确的规律：幼虫先从植株基部开始侵袭，随后逐步扩散至植株其余部位。植株受侵染的速率与程度受品种差异、植株年龄及生理状态的影响。针对潜叶蝇（Leaf Miner Fly, LMF）抗性开展高级无性系鉴定的程序，需在中等及高成虫侵染压力下开展两季试验。所有抗性鉴定试验均设置当地感虫品种作为对照；但若在高侵染压力下开展鉴定，则需同时增设抗虫品种作为对照。试验期间需监测潜叶蝇种群水平，以探究整个试验期内的种群动态变化。每个试验小区内随机选取5株单株，三次调查统计其叶片累计受害百分比，以此确定品系的抗性水平。本次潜叶蝇抗性鉴定共涉及205个高级无性系，结果表明供试材料存在五种不同的抗性反应类型：感虫、高感、抗虫、中抗及高抗。