Bioactivity of cottonseed oil against the coconut mite Aceria guerreronis (Acari: Eriophyidae) and side effects on Typhlodromus ornatus (Acari: Phytoseiidae)

2017 ◽  
Vol 22 (7) ◽  
pp. 1037 ◽  
Author(s):  
Adenir Teodoro ◽  
Maria de Jesus Sousa Silva ◽  
José Guedes Sena Filho ◽  
Eugenio Oliveira ◽  
Andréia Galvão ◽  
...  
Keyword(s):  
Side Effects ◽  
Human Health ◽  
Environmental Contamination ◽  
Chemical Control ◽  
Pest Resistance ◽  
Cottonseed Oil ◽  
Aceria Guerreronis ◽  
Coconut Mite ◽  
Naturally Occurring ◽  
Major Pest

The coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae), is a major pest of coconut plantations. In Brazil, the control of A. guerreronis, when accomplished, is heavily dependent on applications of conventional acaricides, which further increases the risks associated with pest resistance, hazards to human health and environmental contamination. Therefore, the development of alternatives to the chemical control concerns outlined above is urgently needed. Here, we assessed the composition, toxicity and repellent activities of cottonseed oil to A. guerreronis and its naturally occurring predator Typhlodromus ornatus Denmark & Muma (Acari: Phytoseiidae). Our results revealed that the major compounds in cottonseed oil were linoleic and oleic acids, which have been shown to be bioactive against pests. Concentration-mortality bioassays revealed that A. guerreronis (LC50 = 0.65 μL/cm2) was more susceptible to cottonseed oil than its predator (LC50 = 5.11 μL/cm2). Similarly, as demonstrated for the conventional acaricides (i.e., abamectin, azadirachtin, espirodiclofen, and fenpyroximate), cottonseed oil was shown to repel A. guerreronis and its predator. Overall, our findings support the use of cottonseed oil as a desirable tool to be integrated in management programs aimed at controlling A. guerreronis.

Acute and non-lethal effects of coconut oil on predatory mite Typhlodromus ornatus (Acari: Phytoseiidae)

2018 ◽  
Vol 23 (7) ◽  
pp. 1333 ◽  
Author(s):  
Giselle Freitas ◽  
Maria Clezia Santos ◽  
Vanessa Lira ◽  
Andreia Galvão ◽  
Eugenio Oliveira ◽  
...  
Keyword(s):  
Side Effects ◽  
Functional Response ◽  
Vegetable Oils ◽  
Natural Enemy ◽  
Coconut Oil ◽  
Predatory Mites ◽  
Predatory Mite ◽  
Aceria Guerreronis ◽  
Lethal Effects ◽  
Coconut Mite

Typhlodromus (Anthoseius) ornatus Denmark & Muma (Acari: Phytoseiidae) is one of the predatory mites associated with the coconut mite Aceria guerreronis (Acari: Eriophyidae), a serious coconut pest in Africa, Asia and America. Vegetable oils such as coconut oil have been shown to efficiently control A. guerreronis, however their side effects on predatory mites remain poorly investigated. Here, we evaluated the lethal and non-lethal effects of coconut oil on repellence and functional response of the predatory mite T. ornatus, a natural enemy of A. guerreronis. Based on LC50 estimates, coconut oil was over 6-fold less toxic to T. ornatusthan to its prey, A. guerreronis. Additional repellence and predation bioassays show that the coconut oil neither repels nor interferes in the functional response of T. ornatus preying upon A. guerreronis. According to our selectivity approach, the coconut oil is compatible with the predatory mite T. ornatus. 

scholarly journals COCONUT MITE, (Aceria guerreronis, Keifer) – Bibliography

CORD ◽  
2003 ◽  
Vol 19 (01) ◽  
pp. 34
Author(s):  
Ponniah Rethinam ◽  
Muhartoyo
Keyword(s):  
Research And Development ◽  
Chemical Control ◽  
Management Practices ◽  
Cultural Practices ◽  
Steering Committee ◽  
Future Research ◽  
Varietal Resistance ◽  
Aceria Guerreronis ◽  
Group Discussions ◽  
Coconut Mite

Coconut mite, Aceria guerreronis, Keifer, which made its first appearance as pest in Mexico in 1965 as reported by Keifer, has spread far and wide. Now that 37 years have passed. Research efforts have been made on various aspects of this pest like, origin, occurrence, dispersal, symptoms, population dynamics, management practices like chemical control, bio control, cultural practices, varietal resistance/ tolerances, natural enemies, phytosanitary efforts etc. Two international seminars/ workshops have been held. Many group discussions, steering committee meetings, etc. were also held. Lots of publications have come.  An earnest attempt has been made to collect the available literature on this pest which can benefit the member countries and others to know what has been done and what directions one has to move for future research and development. However, this bibliography is not the completed one. There may be many more and we will update as and when we get access to those references. We are confident that this bibliography will help to avoid duplication and take up need based research and development on Eriophyid mite.

scholarly journals Removal of Bunches or Spikelets Is Not Effective for the Control of Aceria guerreronis

HortScience ◽  
2012 ◽  
Vol 47 (5) ◽  
pp. 626-630 ◽  
Author(s):  
José Wagner S. Melo ◽  
Cleiton A. Domingos ◽  
Angelo Pallini ◽  
José Eudes M. Oliveira ◽  
Manoel G.C. Gondim
Keyword(s):  
Control Strategy ◽  
Chemical Control ◽  
Distal Portion ◽  
Effective Practice ◽  
Aceria Guerreronis ◽  
Damage Level ◽  
Low Level ◽  
Coconut Mite ◽  
Diagrammatic Scale

Worldwide, there remains a reliance on repeated chemical applications as a control strategy for the coconut mite, but these are impractical, not economical, and environmentally hazardous. In this study, the damage severity of Aceria guerreronis on coconut fruits was studied under different conditions to investigate the effects of bunch management on the amount of damage to newly produced bunches. The damage was evaluated using a diagrammatic scale under four different conditions: 1) plants with bunches removed; 2) bunches with the distal portion of the spikelet removed; 3) bunches sprayed monthly with abamectin (9 g a.i./ha); and 4) control plants. For each treatment, two fruits from bunches 1 to 6 (counted from the last open inflorescence) from 10 plants were randomly collected every month for 4 months. The removal of the distal portion of the spikelets had no effect on the damage level of new bunches but delayed the damage severity by ≈1 month. After the removal of all of the bunches, the damage severity was restored within 2 months to the newly produced bunches, whereas the chemical control with abamectin kept the A. guerreronis damage intensity at a low level. Thus, the removal of bunches or the distal portion of spikelets is not an effective practice for the control of A. guerreronis in areas with high levels of infestation.

scholarly journals Engineering Highly Homogenous Tetravalent IgGs with Enhanced Sperm Agglutination Potency

2020 ◽  
Author(s):  
Bhawana Shrestha ◽  
Alison Schaefer ◽  
Elizabeth C. Chavez ◽  
Alexander J. Kopp ◽  
Timothy M. Jacobs ◽  
...  
Keyword(s):  
Side Effects ◽  
Hormonal Contraception ◽  
Infertile Woman ◽  
Exogenous Hormones ◽  
Infertile Women ◽  
Unintended Pregnancies ◽  
Naturally Occurring ◽  
Promising Strategy ◽  
Sperm Antibodies

AbstractMillions of women avoid using available contraceptives and risk unintended pregnancies every year, due to perceived and/or real side-effects associated with the use of exogenous hormones. Naturally occurring anti-sperm antibodies can prevent fertilization in immune infertile women by limiting sperm permeation through mucus, particularly multivalent antibodies such as sIgA that offers robust agglutination potencies. Unfortunately, sIgA remains challenging to produce in large quantities and easily aggregates. Here, we designed two tetravalent anti-sperm IgGs with a Fab domain previously isolated from an immune infertile woman. Both constructs possess at least 4-fold greater agglutination potency and induced much more rapid sperm agglutination than the parent IgG while exhibiting comparable production yields and identical thermostability as the parent IgG. These tetravalent IgGs offer promise for non-hormonal contraception and underscore the multimerization of IgG as a promising strategy to improve existing mAb therapeutics.

scholarly journals Coconut destiny after the invasion of Aceria guerreronis (Acari: Eriophyidae) in India*

Zoosymposia ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 160-169 ◽  
Author(s):  
M. A. HAQ
Keyword(s):  
Management Practices ◽  
Critical Assessment ◽  
Bakery Products ◽  
Aceria Guerreronis ◽  
Agricultural Income ◽  
Northern India ◽  
Coconut Mite ◽  
Farming Community ◽  
The People ◽  
Considerable Damage

The coconut mite, Aceria guerreronis Keifer, has emerged as a common menace to most of the coconut plantations in India. After its first upsurge in Kerala at the end of the 1990´s, the mite has spread to many states in southern and northern India, causing considerable damage. Coconut provides one third of the agricultural income in the regions in which it is grown and more than 10 million people are dependent on this cash crop directly or indirectly through coconut-based industries like coir, copra, oil, honey, furniture, handicrafts, beverages, bakery products and so on. The economic instability of the coconut farming community and the people employed in coconut-based industries rank the highest order. A critical assessment of the various problems created by A. guerreronis in the agricultural economy of India is presented in order to supplement data on crop loss through nut malformation, nut fall, loss in fibre and copra. Varietal differences in susceptibility of the plant and future strategies in terms of management practices for an early control of the mite are discussed, and suggestions for future activities to alleviate mite damage are presented.

scholarly journals Statement of the Committee of Human Nutrition Science of the Polish Academy of Sciences on the use of dietary supplements containing vitamins and minerals by adults

2021 ◽  
Author(s):  
Agata Wawrzyniak ◽  
Katarzyna Przybyłowicz ◽  
Lidia Wądołowska ◽  
Jadwiga Charzewska ◽  
Danuta Górecka ◽  
...  
Keyword(s):  
Side Effects ◽  
General Population ◽  
Dietary Supplements ◽  
Dietary Supplementation ◽  
Dietary Recommendations ◽  
Nutrition Science ◽  
Naturally Occurring ◽  
The Individual ◽  
Academy Of Sciences ◽  
Usual Diet

The use of dietary supplements (supplementation) is the individual enrichment of the diet with ingredients naturally occurring in food. As a rule, dietary supplements should be used periodically. In nutritional practice, there are many indications for dietary supplementation, but the decision to take dietary supplements should be made by consumers wisely and only in justified situations, when there is a risk that the usual diet does not provide vitamins and minerals in an amount adequate to meet dietary recommendations. However, we should remember about the real dangers of taking too large doses of vitamins and minerals. Many people using dietary supplements, especially several types at the same time, may experience undesirable side effects and deterioration of health, and in addition, people taking medicines may seriously disrupt or weaken the effect of the drug, or even lack the therapeutic effect of the drug. The document presents 10 steps and rules for the use of dietary supplements available on the market, which are addressed to the general population.

Carnosine increases efficiency of temozolomide and irradiation treatment of isocitrate dehydrogenase-wildtype glioblastoma cells in culture

2019 ◽  
Vol 15 (32) ◽  
pp. 3683-3691
Author(s):  
Johannes Dietterle ◽  
Henry Oppermann ◽  
Annegret Glasow ◽  
Karsten Neumann ◽  
Jürgen Meixensberger ◽  
...  
Keyword(s):  
Side Effects ◽  
Cell Cultures ◽  
Isocitrate Dehydrogenase ◽  
Standard Therapy ◽  
Primary Cell ◽  
Ionizing Irradiation ◽  
Cells In Culture ◽  
Naturally Occurring ◽  
Irradiation Treatment ◽  
Different Doses

Aim: The naturally occurring dipeptide carnosine (CAR) has been considered for glioblastoma therapy. As CAR also protects against ionizing irradiation (IR), we investigated whether it may counteract standard therapy consisting of postsurgery IR and treatment with temozolomide (TMZ). Materials & methods: Four isocitrate dehydrogenase-wildtype primary cell cultures were exposed to different doses of IR and different concentrations of TMZ and CAR. After exposure, viability under the different conditions and combinations of them was determined. Results: All cultures responded to treatment with TMZ and IR with reduced viability. CAR further decreased viability when TMZ and IR were combined. Conclusion: Treatment with CAR does not counteract glioblastoma standard therapy. As the dipeptide also protects nontumor cells from IR, it may reduce deleterious side effects of treatment.

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