Direct and admixture toxicity of diatomaceous earth and monoterpenoids against the storage pests Callosobruchus maculatus (F.) and Sitophilus oryzae (L.)

2009 ◽  
Vol 83 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Md. Saiful Islam ◽  
Md. Mahbub Hasan ◽  
Chaoliang Lei ◽  
Tanja Mucha-Pelzer ◽  
Inga Mewis ◽  
...  
Keyword(s):  
Diatomaceous Earth ◽  
Callosobruchus Maculatus ◽  
Sitophilus Oryzae ◽  
Storage Pests

scholarly journals Evaluation of parasitic potential of Anisopteromalus calandrae (Howard) against Callosobruchus maculatus (F.), Rhyzopertha dominica (F.) and Sitophilus oryzae (L.) in grains treated with diatomaceous

2021 ◽  
Vol 58 (04) ◽  
pp. 1161-1167
Author(s):  
Khurram Mahmood Sultan Kamboh
Keyword(s):  
Diatomaceous Earth ◽  
Callosobruchus Maculatus ◽  
Research Training ◽  
Sitophilus Oryzae ◽  
Rhyzopertha Dominica ◽  
Dose Rates ◽  
Anisopteromalus Calandrae ◽  
Reported Study ◽  
Food Medium ◽  
And Storage

The herein reported study was conducted to evaluate the parasitic potential of Anisopteromalus calandrae (Howard) against larvae of Callosobruchus maculatus (F.), Rhyzopertha dominica (F.) and Sitophilus oryzae (L.) while, adult pests on the food medium treated with two formulations of diatomaceous earth (DE); Marine (Celite) and fresh water (Perma Guard) as grain protectants. The DE was applied at three dose rates i.e., 200, 400 and 600 ppm, at 25°C temperature and 65% relative humidity. Mortality and emergence of adults of tested insects and parasitoid were observed after 14 and 28 days of exposure respectivly. The highest mortality of C. maculatus was 43.37% against higher dose of Perma Guard (600 ppm) while the maximum mortality of S. oryzae was recorded 39.56% on application of Celite (600 ppm). The maximum mortality of A. calandrae parasitoid was observed 66.86% in S. oryzae infested grains treated with higher dose of Perma Guard (600 ppm), while 63.81% mortality of parasitoid was observed in S. oryzae infested grains at higher dose of Celite DE (600 ppm). The Perma Guard effectively controls population of tested insect’s mortality than the Celite. The highest emergence of C maculatus observed was 62.44% at lower dose of 200 ppm of Perma Guard DE while the highest emergence recorded on application of Celite was 60.66% from C. maculatus. The highest emergence of A. calandrae was 65.65% from S. oryzae at lower dose of 200 ppm of Perma Guard DE while the highest emergence of parasitoid recorded on application of Celite was found 60.66% at lower dose of 200 ppm from C maculatus. The emergence of tested insects and parasitoid increased with the decrease in dose rate of DE in most of the tested combinations. Higher dose (600 ppm) of both DE (Celite and Perma Guard) used in experiment showed mortality of tested insects and parasitoid activity of Anisopteromalus calandrae and furthermore release of A. calandrae on host insects would be adversely affected by use of diatomaceous earth product on stored grains. The experiments were carried out in laboratory of Grain Research, Training and Storage Management cell, Department of Entomology, University of Agriculture Faisalabad.

scholarly journals Chemical Composition of Cinnamomum verum Leaf and Flower Essential Oils and Analysis of Their Antibacterial, Insecticidal, and Larvicidal Properties

Molecules ◽  
2021 ◽  
Vol 26 (20) ◽  
pp. 6303
Author(s):  
Arunaksharan Narayanankutty ◽  
Krishnaprasad Kunnath ◽  
Ahmed Alfarhan ◽  
Rajakrishnan Rajagopal ◽  
Varsha Ramesh
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Callosobruchus Maculatus ◽  
Sitophilus Oryzae ◽  
Microbial Pathogens ◽  
Traditional Medicines ◽  
Significant Toxicity ◽  
Leaf Essential Oil ◽  
Different Parts

Cinnamomum verum is widely used in traditional medicines, and the different parts of the plant, such as bark, leaves, and flowers, are used for essential oil production. The present study compared the chemical composition of the essential oil of C. verum extracted from the leaves and flowers. In addition, efficacy of these essential oils against the two common pests Sitophilus oryzae and Callosobruchus maculatus was also evaluated. The results indicated the presence of cinnamaldehyde, eugenol, caryophyllene, and linalool in these essential oils, however, at different concentrations. The leaf essential oil was found to be 10–20% more effective as a fumigant against both the pests. Likewise, the leaf essential oil found to repel these pests even at lower concentrations than that of flower essential oil of C. verum. Besides, these essential oils were also effective in controlling the growth of various gram positive and gram negative microbial pathogens and possibly a safeguard for human health. On contrary, both the essential oils were found to be safe for the application on grains, as indicated by their germination potentials. It was also observed that these essential oils do not cause any significant toxicity to guppy fishes, thus confirming their ecological safety for use as a biopesticide.

scholarly journals Natural Formulation Based on Diatomaceous Earth and Botanicals against Stored Product Insects

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 613 ◽  
Author(s):  
Ivan Paponja ◽  
Vlatka Rozman ◽  
Anita Liška
Keyword(s):  
Diatomaceous Earth ◽  
Corn Oil ◽  
Sitophilus Oryzae ◽  
Rhyzopertha Dominica ◽  
Lower Amount ◽  
Favorable Effect ◽  
Stored Product Insects ◽  
N Form ◽  
Negative Side Effects ◽  
Natural Formulation

Diatomaceous earth (DE) has long been known as a potential protectant for stored cereals against various stored product insects. Despite favorable effect for the environment and human health, DE has some negative side effects on the treated commodity. In order to minimize negative response and to improve its efficacy, this paper represents a study of developed natural formulation based on DE SilicoSec® enhanced with botanicals (essential oil lavender, corn oil, and bay leaves dust) and silica gel. The activity of formulation (labeled as N Form) was tested against Sitophilus oryzae (L.), Rhyzopertha dominica (F.), and Tribolium castaneum (Herbst) in seed wheat and barley under controlled conditions. As a reference comparative value, DE SilicoSec® was used. N Form showed higher efficacy than DE, especially in barley at the lowest concentration, inducing higher mortality of all three insect species. The highest average progeny inhibition was recorded in R. dominica population both in seed wheat and barley with 94.9% and 96.3% of inhibition, respectively, followed with S. oryzae and T. castaneum inhibition of 90.6% and 86.1%, respectively, in wheat and 94.9% and 89.7%, respectively, in barley. Results indicate that the developed natural formulation N Form enhanced the activity of DE SilicoSec® using lower amount of DE dust and that it could be successfully implemented for storage of cereals as alternatives to chemical pesticides for stored product insect control.

Dryacide treatment of stored wheat: its efficacy against insects, and after processing

1987 ◽  
Vol 27 (2) ◽  
pp. 309 ◽  
Author(s):  
JM Desmarchelier ◽  
JC Dines
Keyword(s):  
Carbon Dioxide ◽  
Diatomaceous Earth ◽  
Sitophilus Oryzae ◽  
Silica Aerogels ◽  
Rhyzopertha Dominica ◽  
Ephestia Cautella ◽  
Immature Stages ◽  
Sitophilus Granarius ◽  
Flour Quality ◽  
Effective Level

The efficacy of Dryacide (diatomaceous earth coated with silica aerogels) on wheat was tested in the laboratory against adult and immature stages of 4 species of Coleoptera and against immature stages of 1 species of Lepidoptera. The minimum effective level of Dryacide increased in the following order: immature Ephestia cautella (Walker) ~ immature Tribolium castaneum (Herbst) < immature Rhyzopertha dominica (F) < adult R. dominica ~ adult T. castaneum < adult Sitophilus oryzae (L) < adult Sitophilus granarius (L) < immature Sitophilus species. When wheat treated with Dryacide was milled in the laboratory without prior cleaning, less than 3% of the Dryacide carried over into the flour. Commercial cleaning of wheat removed (�s.e.) about 98 � 1% of Dryacide, and no Dryacide could be detected in the flour. Dryacide treatment did not affect flour quality as determined by the volume of sponge cakes and the production of carbon dioxide by fermenting dough.

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