scholarly journals Monitoramento de mosca-minadora Liriomyza sp. (Diptera:Agromyzidae) em meloeiro e levantamento de seus possíveis inimigos naturais no município de Floresta, Pernambuco

2021 ◽  
Vol 8 (3) ◽  
pp. 501-512
Author(s):  
Natália de Menezes Gomes Ferraz ◽  
Lucas Matheus Monteiro dos Santos ◽  
Leandro José Uchôa Lemos
Keyword(s):  
Liriomyza Sativae

Dentre os insetos-pragas que limitam a produtividade do meloeiro estão as moscas-minadoras do gênero Liriomyza. A maioria dos produtores adotam o controle químico para reduzir a incidência dessa praga nos plantios, porém o uso indiscriminado desse método pode causar vários problemas de ordem ecológica, econômica e social. Uma alternativa para o manejo desta praga é o controle biológico com o uso de parasitoides. Portanto, este trabalho teve como objetivos: identificar a espécie mais importante de mosca-minadora para o município de Floresta-PE; monitorar a sua densidade populacional durante todo o ciclo da cultura; verificar a ocorrência de inimigos naturais (parasitoides), bem como sua taxa de parasitismo para seleção dos mais promissores e verificar a melhor época de liberação conforme a fenologia da cultura. Os experimentos foram conduzidos em duas áreas comerciais de meloeiro localizadas nos arredores de Floresta-PE, onde selecionou-se de forma randomizada 30 plantas para amostragem de larvas presentes nas folhas. Foram analisadas 30 folhas para verificação da emergência tanto de Liriomyza quanto de parasitoides para posterior identificação e contabilização. Os levantamentos ocorreram semanalmente até a colheita e totalizaram sete por área. Os dados das amostragens de minadora foram submetidos à análise de variância e ao teste de Tukey (5%). Os dados da taxa de parasitismo foram sujeitos a uma fórmula específica. De acordo com os resultados obtidos, a espécie de mosca-minadora que predomina na localidade em questão é a Liriomyza sativae, sendo a sua maior ocorrência nos estágios iniciais da cultura do meloeiro. Dentre os inimigos naturais, os mais abundantes e com maior taxa de parasitismo foram os da família Eulophidae e a melhor época de liberação dos mesmos é entre a segunda e a terceira semana após o plantio.

scholarly journals Effect of aqueous neem seed extract via irrigation on larvae of Liriomyza sativae in melon crop

2018 ◽  
Vol 36 (3) ◽  
pp. 353-356 ◽  
Author(s):  
Ewerton M Costa ◽  
Francisco EL Silva ◽  
Elton L Araujo
Keyword(s):  
Larval Mortality ◽  
Total Mortality ◽  
Seed Extract ◽  
Neem Seed ◽  
Liriomyza Sativae ◽  
Randomized Design ◽  
Soil Irrigation ◽  
Completely Randomized Design ◽  
Pupal Mortality ◽  
Neem Seed Extract

ABSTRACT The leafminer [Liriomyza sativae (Diptera: Agromyzidae)] is one of the main pests of melon crop (Cucumis melo) in the states of Rio Grande do Norte and Ceará. Thus, adopting strategies to control this destructive insect is essential. The aim of this study was to evaluate the effect of aqueous neem seed extract, applied to soil via irrigation, on leafminer larvae, in the melon crop. An experiment was conducted in greenhouse, in completely randomized design, consisting of five treatments (four doses of aqueous neem seed extract: 1; 3; 5 and 10 g/100 mL) and the control consisting only of distilled water and 10 replicates (melon plants). The treatments were applied in a single dose, via soil irrigation. In the first stage of the evaluation, 24 hours after application, the number of dead larvae per plant was counted. In the second step, pupal mortality was recorded. The total mortality was also calculated considering the number of larvae and the number of emerged adults. We verified that, increasing the concentration of aqueous neem seed extract, an increase in the larval and pupal mortality of the leafminer in melon crop was noticed. The concentration 10 g/100 mL presented the best results, resulting in 36.4% of larval mortality, 96.5% of pupal mortality and 96.8% of total mortality.

scholarly journals PENGARUH FREKUENSI DAN APLIKASI INSEKTISIDA ABAMECTIN TERHADAP KELIMPAHAN POPULASI DAN PERSENTASE SERANGAN LALAT PENGOROK DAUN LIRIOMYZA SPP (DIPTERA: AGROMYSIDAE)

2018 ◽  
Vol 8 (2) ◽  
pp. 79-84
Author(s):  
Arfan Arfan ◽  
Lisa Indriani Bangkele ◽  
Hasmari Noer
Keyword(s):  
Attack Rate ◽  
Population Development ◽  
Population Abundance ◽  
Onion Plant ◽  
Liriomyza Sativae

Effect of Frequency and Application of Abamectin Insecticides on Population Abundance and Attack Level of Leafminer Liriomyza, spp. (Diptera: Agromysidae) is one of the main pests on the Lembah Palu red onion, where this pest is relatively new in the Palu Valley. The aim of the study was to examine the effect of frequency and application of insecticides on population abundance, and the attack rate of  L. chinensis (Diptera: Agromyzidae) on the Lembah Palu red onion plant under applied and unapplied insecticide. The treatment of abamectin insecticide was applied once a week with a concentration of 1 ml of formulation per liter of water, beginning at the age of 2 MST and ending at 7 MST. The results showed that there were 2 species of Liriomyza, spp associated with Palu valley red onion i.e. Liriomyza chinensis and Liriomyza sativae. This research found that the application of Abamectin insecticides significantly affected population development and the percentage of Liriomyza, spp. on the lembah Palu red onion.

scholarly journals Seasonal Abundance of Liriomyza sativae (Diptera: Agromyzidae) and its Parasitoids on Vegetables in Southern Vietnam

10.5109/9280 ◽  
2007 ◽  
Vol 52 (1) ◽  
pp. 49-55
Author(s):  
Dang Hoa Tran ◽  
Thi Thien An Tran ◽  
lan Phuong Mai ◽  
Takatoshi Ueno ◽  
Masami Takagi
Keyword(s):  
Seasonal Abundance ◽  
Liriomyza Sativae ◽  
Southern Vietnam

scholarly journals POPULASI DAN SERANGAN LIRIOMYZA SATIVAE (BLANCHARD) (DIPTERA: AGROMYZIDAE), SERTA POTENSI PARASITOIDNYA PADA PERTANAMAN KETIMUN

2005 ◽  
Vol 5 (2) ◽  
pp. 73-81
Author(s):  
Siti Herlinda ◽  
Leny Puspa Rosalina ◽  
Yulia Pujiastuti ◽  
Erizal Sodikin ◽  
Aunu Rauf
Keyword(s):  
Regression Coefficient ◽  
Adult Population ◽  
Larval Abundance ◽  
Liriomyza Sativae ◽  
Leaf Mining ◽  
The Relationship

Population and damage by Liriomyza sativa (Blanchard) (Diptera : Agromyzidae) and its parasitoid potential on cucumber fields. The objectives of this research were to figure out adult population of L. sativae and the damage caused by the larvae on cucumber leaves, to analyze the relationship between adult population and the number of leaf mining tunnel caused by L. sativae larvae, and to analyze the relationship betweeen the larval abundance and its parasitoids. The highest adult population (7.60 adults per trap) of L. sativae was found on 5 weeks after planting (WAP) and the lowest (3.20 adults per trap) was on 2 WAP. The highest damage intensity was found on 3 weeks after planting, amounted to 36.89% while the lowest was found on 6 weeks after planting, amounted to 12.12%. The regression coefficient showed that each adult of L. sativae caused one leaf mining tunnel. The  higher  the  number of L. sativae  larvae, the  more  the  mining tunnels occured (R = 80.8%). The higher the number of L. sativae larvae in cucumber leaves, the more the larvae parasitized (R = 86.8%). Parasitoids found were Diglyphus sp. (Hymenoptera : Eulophidae) and Neochrysocharis sp. (Hymenoptera : Eulophidae). The highest apparent parasitism was found on 5 weeks after planting, amounted to 41.9%.

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