scholarly journals EFFICACY OF SOME PLANT EXTRACTS AND THE COMMERCIAL BIOCIDE, DOLPHIN ON POTATO TUBER WORM, Phthorimaea operculella (ZELLER.) (LEPIDOPTERA: GELECHIIDAE) UNDER FIELD AND STORAGE CONDITIONS

2011 ◽  
Vol 2 (12) ◽  
pp. 1123-1131
Author(s):  
Eftkhar Abou Hatab ◽  
Neveen Arafat ◽  
Naglaa Riad
Keyword(s):  
Potato Tuber ◽  
Plant Extracts ◽  
Storage Conditions ◽  
Phthorimaea Operculella ◽  
And Storage

scholarly journals Botanical extracts against the potato tuber moth, Phthorimaea operculella (Zeller 1873) (Lepidoptera: Gelechiidae), during storage conditions

2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Aziza Mohamed Fouad Sharaby ◽  
Mohamed Ahmed Gesraha ◽  
Sahar Ahmed Baker Fallatah
Keyword(s):  
Potato Tuber ◽  
Storage Conditions ◽  
Phthorimaea Operculella ◽  
Potato Tuber Moth ◽  
Botanical Extracts

scholarly journals Botanicals to Control Soft Rot Bacteria of Potato

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
M. M. Rahman ◽  
A. A. Khan ◽  
M. E. Ali ◽  
I. H. Mian ◽  
A. M. Akanda ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Curcuma Longa ◽  
Soft Rot ◽  
Storage Condition ◽  
Storage Conditions ◽  
Leaf Extracts ◽  
Corchorus Capsularis ◽  
Rot Disease ◽  
And Storage

Extracts from eleven different plant species such as jute (Corchorus capsularisL.), cheerota (Swertia chiraitaHam.), chatim (Alstonia scholarisL.), mander (Erythrina variegata), bael (Aegle marmelosL.), marigold (Tagetes erecta), onion (Allium cepa), garlic (Allium sativumL.), neem (Azadiracta indica), lime (Citrus aurantifolia), and turmeric (Curcuma longaL.) were tested for antibacterial activity against potato soft rot bacteria,E. carotovorasubsp.carotovora (Ecc)P-138, underin vitroand storage conditions. Previously,EccP-138 was identified as the most aggressive soft rot bacterium in Bangladeshi potatoes. Of the 11 different plant extracts, only extracts from dried jute leaves and cheerota significantly inhibited growth ofEccP-138in vitro. Finally, both plant extracts were tested to control the soft rot disease of potato tuber under storage conditions. In a 22-week storage condition, the treated potatoes were significantly more protected against the soft rot infection than those of untreated samples in terms of infection rate and weight loss. The jute leaf extracts showed more pronounced inhibitory effects onEcc-138 growth both inin vitroand storage experiments.

scholarly journals The Integration Between Trichogramma Evanescens West. (Hymenoptera: Trichogrammatidae) and Selected Bioinsecticides for Controlling the Potato Tuber Moth Phthorimaea Operculella (Zell.) (Lepidoptera: Gelechiidae) of Stored Potatoes

2012 ◽  
Vol 52 (1) ◽  
pp. 40-46 ◽  
Author(s):  
Nasser Mandour ◽  
Awad Sarhan ◽  
Dina Atwa
Keyword(s):  
Potato Tuber ◽  
Storage Conditions ◽  
Egg Parasitoid ◽  
Phthorimaea Operculella ◽  
Control Treatment ◽  
Potato Tuber Moth ◽  
Combined Treatments ◽  
Trichogramma Evanescens ◽  
Edible Parts ◽  
Dipel 2X

The Integration BetweenTrichogramma EvanescensWest. (Hymenoptera: Trichogrammatidae) and Selected Bioinsecticides for Controlling the Potato Tuber MothPhthorimaea Operculella(Zell.) (Lepidoptera: Gelechiidae) of Stored PotatoesThe efficacy of the egg-egg parasitoidTrichogramma evanescens(Hymenoptera: Trichogrammatidae) and certain bioinsecticides (e.g., Neemix, Virotecto, Agerin, Dipel 2x and Spinosad) for controlling the potato tuber moth (PTM),Phthorimaea operculella(Zeller) (Lepidoptera: Gelechiidae) under storage conditions was studied. Single and combined treatments ofT. evanescensand the bioinsecticides were tested. Neemix and spinosad were evaluated as spray treatments. Virotecto, Agerin and Dipel 2x were evaluated as dust and spray treatments. Data were recorded in terms of rate of infestation, reduction of infestation, number ofP. operculellapupae, and number of mines per 20 tubers as well as percentage of edible parts. Data revealed that the percentage of infestation in the control treatment was as high as in the Neemix treatment being 96.67 and 90% after one and two months of storage, respectively. Obviously, Spinosad and Dipel 2x were the most effective bioinsecticides in reducing tuber infestation and number ofP. operculellarecovered pupae. Virotecto and Agerin reduced rate of infestation and number of recoveredP. operculellapupae over that of the control, but their effect was significantly lower than that of Spinosad or Dipel 2x. Moreover, there were significant differences among treatments in the form of the number ofP. operculellatunnels and percentages of edible parts after two months in storage. Data further indicated that the integration between the tested bioinsecticides andT. evanescensenhanced the control ofP. operculella.Significant differences in percentages of infestation, edible parts, number of recovered pupae as well as number of mines in stored potatoes existed between individual treatments (withoutTrichogramma) and combined treatments.

scholarly journals Field Survey and Monitoring of Potato Tuber Moth (Phthorimaea operculella)(Zeller)(Lepidoptera: Gelechiidae)

2006 ◽  
Vol 27 ◽  
pp. 157-160
Author(s):  
DB Tiwari ◽  
RB Thapa ◽  
SM Shrestha ◽  
SL Joshi
Keyword(s):  
Potato Tuber ◽  
Field Survey ◽  
Potato Crop ◽  
Insect Pest ◽  
Potato Production ◽  
First Record ◽  
Phthorimaea Operculella ◽  
Kathmandu Valley ◽  
Potato Tuber Moth ◽  
And Storage

Potato tuber moth (PTM), Phthorimaea operculella (Zeller) is a major pest of stored potato. Field survey was conducted to know the effect of this pest on potato production and storage under farmers' conditions in the Kathmandu valley and remote district Rolpa during 2005. Ninety farmers (40 in the Kathmandu valley and 50 in Rolpa) were interviewed in semi-structured questionnaires and PTM was also monitored using sex pheromone. Survey and monitoring revealed that PTM (insect pest) and late blight (disease) were the major problems of potato crop in both the areas. Maximum of 69 moths per week were collected in one set of pheromone trap in Kathmandu and 76 moths trapped within five days of trap setting in Rolpa. That was the first record, authentic evidence to clarify farmers’ confusion in Rolpa district about the presence of P. operculella in potato growing areas. In the Kathmandu valley, 95% of respondent farmers were aware of this pest and 80% farmers relied on chemical pesticides to manage P. operculella on stored potato. However, only 4% of the respondent farmers in Rolpa were aware of this pest. Therefore, its management is necessary for healthy potato production in the field and storage under farmers’ conditions in Nepal. Key words : Phthorimaea operculella, field survey and monitoring J. Inst. Agric. Anim. Sci. 27:157-160 (2006)

scholarly journals Potential of Entomopathogenic Nematodes versus Alpha-cypermethrin Against Potato Tuber Moth, Phthorimaea operculella Zeller 1873 (Lep.: Gelechiidae) in Storage Conditions

2021 ◽  
Author(s):  
Laleh Ebrahimi ◽  
Aziz Sheikhigarjan ◽  
Mehran Ghazavi
Keyword(s):  
Potato Tuber ◽  
Similar Efficacy ◽  
Storage Conditions ◽  
Phthorimaea Operculella ◽  
Steinernema Carpocapsae ◽  
Steinernema Feltiae ◽  
Potato Tuber Moth ◽  
Adverse Impacts ◽  
Synthetic Chemicals ◽  
Potato Pests

The potato tuber moth PTM, Phthorimaea operculella, is one of the most economically important potato pests worldwide. In the present study, the potential of Steinernema feltiae and Steinernema carpocapsae for controlling PTM in potato tubers was evaluated compared to alpha-cypermethrin. Steinernema carpocapsae in both concentrations (12.6×106IJs and 6.2×106IJs) showed a lower number of emerged insects than alpha-cypermethrin (10 mg ai l-1). Alpha-cypermethrin (20 mg ai l-1) showed the highest efficacy against PTM (81.17%), S.carpocapsae (12.6×106IJs), and alpha-cypermethrin (10 mg ai l-1) showed similar efficacy (72.53%) while S. feltiae (6.2×106IJs) showed the lowest efficacy (39.04%). The results showed that S.carpocapsae in both concentrations and S. feltiae (12.6×106IJs) were efficient the same as alpha-cypermethrin (10 mg ai l-1) having no environmental and health adverse impacts issued in the chemical insecticides usage. Both concentrations of alpha-cypermethrin and S. carpocapsae showed the least tuber damage with no significant differences, while it was as high as the control (59.26%) in both concentrations of S. feltiae. This promising finding introduces EPNs as a part of the potato tuber protection program in storage. Accordingly, EPNs can be considered as an appropriate alternative to synthetic chemicals for PTM control without any residue and health problems.

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