| Summary: | <p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"><span style="color: #000000;"><span style="font-family: Times New Roman,serif;"><span style="font-size: small;">With the objective of studying the abundance and diversity of predaceous arthropods associated with cotton crop, and analyze the influence of meteorological factors, interactions between natural enemies and population dynamics of coccinellids associated with their principal prey, the aphid <em>Aphis gossypii</em>, an experiment was carried out in the region of Ipameri, Goi&aacute;s State, Brazil, at the Universidade Estadual de Goi&aacute;s campus. The experimental design was randomized blocks, with five treatments, consisting of the DeltaOPAL, FMX 966, FMX 993, FMX 910, and NuOPAL cultivars, in four replications. Among the arthropods sampled in the cotton crop, the coccinellids and spiders were the most abundant ones in the cultivars evaluated. Spiders occurred throughout the cotton cycle, while the coccinellids population increased gradually until 55 DAE, showing a population peak at 34 DAE, coinciding with the population peak of aphids (<em>Aphis gossypii</em>). Among the coccinellids observed in the cultivars under study, <em>Scymnus</em> spp. was the most abundant in cotton. The pentatomid and forficulid occurred from 99 to 128 days after the emergence of cotton, which corresponds to the highest density of target pest insects. It was not found influence of meteorological factors or negative interactions among predaceous arthropods. </span></span></span></p> <p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="en-US" align="JUSTIFY"><span style="color: #000000;"><span style="font-family: Times New Roman,serif;"><span style="font-size: small;">KEY-WORDS: <em>Gossypium hirsutum</em>; natural enemies, coccinellids.</span></span></span></p><br><p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"><span style="color: #000000;"><span style="font-family: Times New Roman,serif;"><span style="font-size: small;">Com o objetivo de estudar a abund&acirc;ncia e a diversidade de artr&oacute;podes predadores associados &agrave; cultura do algodoeiro e analisar a influ&ecirc;ncia de fatores meteorol&oacute;gicos, intera&ccedil;&otilde;es entre inimigos naturais e a din&acirc;mica populacional de coccinel&iacute;deos associados &agrave; sua principal presa, o pulg&atilde;o <em>Aphis gossypii</em>, um experimento foi realizado na regi&atilde;o de Ipameri (GO), no Campus da Universidade Estadual de Goi&aacute;s. O delineamento experimental utilizado foi o de blocos ao acaso, com cinco tratamentos, constitu&iacute;dos pelas cultivares DeltaOPAL, FMX 966, FMX 993, FMX 910 e NuOPAL, em quatro repeti&ccedil;&otilde;es. Dentre os artr&oacute;podes observados na cultura do algodoeiro, os coccinel&iacute;deos e as aranhas foram os mais abundantes, nas cultivares avaliadas. As aranhas ocorreram em todo o ciclo do algodoeiro. J&aacute; os coccinel&iacute;deos aumentaram sua popula&ccedil;&atilde;o, gradativamente, at&eacute; 55 DAE, apresentando pico populacional aos 34 DAE, coincidindo com o pico populacional dos pulg&otilde;es <em>A. gossypii</em>. Dentre os coccinel&iacute;deos observados nas cultivares em estudo, verificou-se que <em>Scymnus</em> spp. foi o g&ecirc;nero mais abundante no algodoeiro. Os pentatom&iacute;deos e forficul&iacute;deos predominaram dos 99 aos 128 dias ap&oacute;s a emerg&ecirc;ncia do algod&atilde;o, per&iacute;odo que corresponde &agrave; maior densidade de pragas-alvo destes insetos. Verificou-se que n&atilde;o houve influ&ecirc;ncia dos fatores meteorol&oacute;gicos e nem intera&ccedil;&atilde;o negativa entre os artr&oacute;podes predadores. </span></span></span></p> <p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"><span style="color: #000000;"><span style="font-family: Times New Roman,serif;"><span style="font-size: small;">PALAVRAS-CHAVE: <em>Gossypium hirsutum</em>; inimigos naturais; coccinel&iacute;deos.</span></span></span></p>
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