Barbosa Pinto Cleovan, Almeida Sarmento Renato, Visintin da Silva Galdino Tarcísio, Silvestre Pereira Poliana, Gomes Barbosa Breno, Henrique Oliveira Lima Carlos, Rodrigues da Silva Nilson, Coutinho Picanço Marcelo
Departamento de Entomologia, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, 36570-900, Viçosa, MG, Brasil (
Agência de Defesa Agropecuária do Estado do Tocantins (ADAPEC/TO). Quadra 104 Sul Rua SE 1, Plano Diretor Sul, 77020014, Palmas, TO - Brazil.
J Econ Entomol. 2017 Apr 1;110(2):748-754. doi: 10.1093/jee/tow314.
Sampling plans are essential components of integrated pest management programs. The thrips Frankliniella schultzei (Trybom) (Thysanoptera: Thripidae) is an important pest of watermelon crops. Despite the importance of sampling plans and of F. schultzei as a pest of watermelon crops, no research has been previously conducted on this subject for this crop. The objective of this work was to create a standardized sampling plan for F. schultzei in watermelon crops. Over two consecutive years, weekly samplings were performed in commercial watermelon crops. The aim of these assessments was to select the best sampling unit and the best sampling technique for F. schultzei assessment and to determine the number of samples necessary for a standardized sampling plan for this pest. In watermelon crops in the vegetative, flowering, and fruiting stages, the ideal location for sampling F. schultzei was the most apical leaf of the branches. The best sampling technique was a direct count of F. schultzei individuals. The F. schultzei sampling plan involved the evaluation of 69 samples per plot. The execution duration of this sampling plan in 1- to 15-ha plots was <1 h and was inexpensive (<US$ 2 per sampling). This has not been reported for watermelon before.
抽样计划是综合虫害管理计划的重要组成部分。西花蓟马Frankliniella schultzei (Trybom)（缨翅目：蓟马科）是西瓜作物的一种重要害虫。尽管抽样计划以及西花蓟马作为西瓜作物害虫的重要性，但此前尚未针对该作物在这一主题上开展过研究。这项工作的目的是为西瓜作物中的西花蓟马制定一个标准化抽样计划。连续两年对商业西瓜作物进行每周一次的抽样。这些评估的目的是为西花蓟马评估选择最佳抽样单位和最佳抽样技术，并确定该害虫标准化抽样计划所需的样本数量。在处于营养期、开花期和结果期的西瓜作物中，抽样西花蓟马的理想位置是枝条最顶端的叶片。最佳抽样技术是直接计数西花蓟马个体。西花蓟马抽样计划涉及每个地块评估69个样本。该抽样计划在1至15公顷地块上的执行时间不到1小时，成本低廉（每次抽样不到2美元）。此前西瓜方面尚未有过此类报道。
