Monitoring and Control of Helicoverpa armigera by Synthetic Pheromone Traps in Peas, Pisum sativum

2003 ◽  
Vol 3 (10) ◽  
pp. 926-931 ◽  
Author(s):  
Muhammad Faheem Mali . ◽  
Daud-ur-Rehman . ◽  
Mansoor Ahmed Bajwa . ◽  
Naveed Latif Lodhi . ◽  
Liaquat Ali . ◽  
...  
2017 ◽  
Vol 5 (1) ◽  
pp. 45-49
Author(s):  
K. D Shah ◽  
R. C Jhala ◽  
S. R Dhandge

An experiment was carried out during rabi 2011 and summer 2012 in Large Plot Completely Randomized Design with four treatments viz., pheromone traps @ 30, 40, 50 /ha and control withten replications to standardize the requirement of pheromone traps for mass trapping of Helicoverpa armigera (Hubner) Hardwick infesting tomato [Solanum lycopersicum Linnaeus] crop. The results revealed that the highest moth catches were recorded (9630 moths /ha) during first year, while 9405moths /ha were recorded during second year with an average of 9518 /ha during two consecutive years. The treatment of 50 traps /ha recorded significantly lowest population of eggs (0.78 /10 twigs), lowest larval population (1.32 /10 twigs) resulting in lowest fruit damage (3.71%).


2002 ◽  
Vol 1 (6) ◽  
pp. 652-654 ◽  
Author(s):  
Muhammad Faheem Mal ◽  
Arshad Ghani Khan . ◽  
Syed Waseem Hussainy . ◽  
Daud-ur-Rahman . ◽  
Muhammad Amin .

2021 ◽  
Author(s):  
Alexander Lukin

Abstract The Siberian silkworm (Dendrolimus sibiricus Tschetv.) is a defoliator pest that poses a significant threat to coniferous forest stands. Over the past decades, several large outbreaks of this species have occurred in Siberia (Russia), which has led to changes in forest ecosystems and an increase of expenses involved in reforestation. Adults capture new territories in the process of migration, therefore, a set of measures is needed to register the number and prevent further dispersal of the moth. One of methods of trapping is glue traps with synthetic pheromone. 16 district forestries located in the middle taiga subzone, with a total area of 151 850 hectares, were surveyed as a part of the phytosanitary monitoring of the Siberian silkworm in the Komi Republic (Russia). Analysis of 773 pheromone traps showed 414 males of the target species that were identified by their genitals. The highest indicators of catchability were found in three district forestries. Taking into account the results obtained, it was proposed to continue the monitoring using the pheromone traps, to survey more northern forest districts and to carry out subsequent searches for preimaginal stages of the silkworm in the forest districts of Priluzsky district. The study will be useful for predicting the further spread of the silkworm and for developing optimal containment and control of the pest.


2021 ◽  
Vol 10 (20) ◽  
pp. 85-92
Author(s):  
Simona Hogea

Tuta absoluta – tomato leafminer (Meyrick) (Lepidoptera: Gelechiidae) is a major pest of tomato crops in protected areas, which attacks both foliage and fruit, in all phases of plant growth. Its invasion has led to yield and quality decrease, increased costs to control and high dependence on chemical insecticides. With pheromone traps it is possible to monitor and reduce the density of the pest population. The experience was established in 2020, at a farmer in Dobreni village (Giurgiu county). In the first and second crop cycle, the population of the pest Tuta absoluta was monitored, by placing Delta pheromone traps in tomato crops. The Sahmat F1 tomato hybrid was planted in both crop cycles. Pest monitoring was performed weekly, by changing the adhesive plates with pheromones from Delta traps, on the dates: 03.06, 10.06, 17.06, 24.06, 01.07, 08.07, 15.07, 22.07 in the first cycle of crop and on the dates: 29.07, 05.08, 12.08, 19.08, 02.09 , 09.09, 16.09, 23.09 in the second cycle. The appearance and evolution of the attack were recorded in the both crop cycles and its influence on production was established.


2020 ◽  
Vol 18 (4) ◽  
pp. 151
Author(s):  
HERI PRABOWO ◽  
IGAA INDRAYANI

<p>ABSTRAK<br />Entomopatogen dari genus Steinernema berpotensi digunakan<br />sebagai pengendali berbagai serangga hama, terutama ordo Lepidoptera,<br />seperti  Helicoverpa  armigera.  Penggunaan  Steinernema  untuk<br />pengendalian H. armigera akan menguntungkan karena aman terhadap<br />lingkungan, mudah diproduksi massal, toleran terhadap berbagai macam<br />pestisida, dapat aktif mencari serangga sasaran, tidak menyebabkan<br />resisten dan resurjensi, serta dapat diaplikasikan dengan alat semprot<br />standar. Namun, formula pestisida hayati mengandung Steinernema masih<br />sangat terbatas. Tujuan penelitian adalah membuat formula Steinernema<br />sp. yang efektif terhadap hama penggerek buah kapas (H. armigera).<br />Penelitian dilaksanakan di laboratorium Patologi Serangga, Balai<br />Penelitian Tanaman Pemanis dan Serat, Malang mulai bulan Mei-Juli<br />2010. Larva instar III Steinernema sp. dibuat dalam 6 macam formula<br />perlakuan dengan bahan pembawa (carrier) berbeda-beda, yaitu (1)<br />suspensi (akuades + sukrosa), (2) pellet-2 (sekam padi), (3) pellet-1<br />(tanah liat + arang), (4) agar + spon, (5) kapsul (Ca-alginat), dan (6)<br />kontrol (akuades). Setiap formula diinokulasikan 10 6 juvenil infektif (JI).<br />Masing-masing perlakuan disusun dalam rancangan acak lengkap (RAL)<br />dengan tiga kali ulangan. Penurunan jumlah juvenil infektif (JI) pada<br />setiap formula yang diamati per minggu selama ± 4 minggu. Isolat yang<br />digunakan untuk penelitian ini berasal dari Asembagus. Untuk<br />mengevaluasi efektivitas formula, larva H. armigera diperlakukan dengan<br />JI yang berasal dari masing-masing formula setiap minggu selama empat<br />minggu. Perlakuan ini menggunakan rancangan acak lengkap dengan<br />empat ulangan. Jumlah penurunan JI setiap minggu selama empat minggu<br />setelah perlakuan. Persentase JI yang hidup pada pellet-1, suspensi, pellet-<br />2, agar + spon, kapsul, dan kontrol berturut-turut sebesar 53; 12,4; 44;<br />63,8; 17,6; dan 5%. Pada minggu pertama sampai minggu keempat setelah<br />perlakuan terlihat bahwa formula yang paling baik mempertahankan JI<br />adalah agar + spon dan kemudian berturut-turut diikuti oleh pellet-1,<br />pellet-2, kapsul, suspensi. Steinernema sp. yang disimpan selama empat<br />minggu dalam berbagai bentuk formula terhadap H. armigera berkisar<br />antara 80-99%. Formula agar dan spon paling baik untuk menyimpan<br />Steinernema sp. selama empat minggu, karena formula ini memberikan<br />tingkat viabilitas dan efektivitas Steinernema sp. paling tinggi.<br />Kata kunci : efektivitas, formula, Helicoverpa armigera, Steinernema sp.,<br />viabilitas</p><p>ABSTRACT<br />Entomopathogenic nematodes genus Steinernema for are potential<br />to be used as a control for various insect pests, especially ordo<br />Lepidoptera, such as Helicoverpa armigera. The use of Steinernema to<br />control H. armigera is beneficial because it is environmentally friendly,<br />easy to produce, tolerant to several pesticides, actively search the target<br />insect, does not cause resistance and resurgence, and can be applied by<br />using standard sprayer. Unfortunately, biological pesticide containing<br />Steinernema is still limited. The study was aimed at formulating a<br />biological agen containing Steinernema sp. to control the cotton bollworm<br />weevil (H. armigera). The experiment was conducted at insect pathology<br />laboratory, Indonesian Sweetener and Fiber Crops Research Institute,<br />Malang from May to July 2010. Steinernema sp. instar III larvae was<br />formulated in six different forms such as Pellet-1 (clay+carbon),<br />suspension (distilled water+sucrose), Pellet-2 (rice husk), agar+sponge,<br />capsule (Ca-alginate), and control (distilled water). Each formulation was<br />inoculated with 10 6 Infective Juvenile (IJ). Each treatment was arranged in<br />completely randomized design (CRD) with three replicates. Each<br />formulation observed showed decrease in IJ number every week for + 4<br />weeks. Isolates used for this research were originated from Asembagus<br />experimental station. For evaluation of the formulation effectiveness, H.<br />armigera larvae was treated using IJ from the formula weekly for four<br />weeks. On the first week after treatment, the percentages of living IJ in<br />Pellet-1, suspension, Pellet-2, agar+sponge, capsule, and control were 53;<br />12.4; 44; 63.8; 17.6; and 5%, respectively. Effectiveness of Steinernema<br />sp. stored for four weeks in various formulations against H. armigera<br />ranged from 80-99%. The best formula of Steinernema sp for storage was<br />agar+sponge because of its ability to viability and effectiveness of<br />Steinernema sp.<br />Key words: effectiveness, formulation, Helicoverpa armigera, viability,<br />Steinernema sp.,</p>


2014 ◽  
Vol 12 (1) ◽  
pp. 131-139 ◽  
Author(s):  
AKMZ Rahman ◽  
MH Haque ◽  
SN Alam ◽  
M Mahmudunnabi ◽  
NK Dutta

Four botanicals viz., mahogany oil, mahogany seed extract, tobacco leaf extract, neem seed kernel extract along with one synthetic chemical, cypermethrin were tested for their efficacies against H. armigera. The lowest fruit infestation, both by number and weight, was observed in neem seed kernel extract (27.15%, 22.29%) treated plot which was statistically similar to tobacco leaf extract (27.71%, 23.31%) treated plot and cypermethrin (28.87%, 25.44%) treated fruits. While no significant difference was found among mahogany oil, mahogany seed extract and control treatments. Percent infestation reduction over control was the highest in neem seed kernel extract (30.08%) followed by tobacco leaf extract (28.68%). The highest yield (18.14 t/ha) and the highest MBCR (2.99) were also obtained from neem seed kernel extract treated fruits. DOI: http://dx.doi.org/10.3329/agric.v12i1.19868 The Agriculturists 2014; 12(1) 131-139


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