Results 51 to 60 of about 95,173 (266)

Insecticide Effects on Normal Development and Hatch of Embryos of \u3ci\u3eParatanytarsus Parthenogeneticus\u3c/i\u3e (Diptera: Chironomidae) [PDF]

, 2017
Simple, low cost methods are needed to determine the effect of pesticides on non-target aquatic organisms. In this report, embryos of Paratanytarsus parthenogenetic us were exposed from deposition to hatch to five pesticides.
Anderson, Richard L, Shubat, Pam
core   +2 more sources

Nilai LC50 Cymbopogon nardus L terhadap Musca domestica

Jurnal Kesehatan Lingkungan Indonesia, 2020
Latar belakang: Pengendalian serangga umumnya dilakukan menggunakan bahan kimia yang dapat mengancam kesehatan manusia dan lingkungan. Pemanfaatan tanaman sebagai insektisida alami perlu dikembangkan. Cymbopogon citratus diketahui mengandung zat-zat yang berpotensi sebagai insektisida.
Susilawati Susilawati, Salbiah Salbiah, Fathmawati Fathmawati   +2 more
openaire   +2 more sources

Magnetic Pinecone Biochar‐Activated Peroxymonosulfate for Efficient Sulfamethoxazole Degradation: Performance, Mechanism, and Toxicity Analysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study successfully prepared magnetic iron/cobalt codoped biochar catalyst (CFSBC) using a one‐step calcination method. The morphology and structure of the material were systematically characterized using SEM, XRD, FTIR, TEM, BET, Raman, VSM, and XPS techniques. The effects of key parameters such as catalyst dosage, peroxymonosulfate (PMS)
Jianhua Ni, Haoyuan Zheng, Guishang Sheng, Xi Zhang   +3 more
wiley   +1 more source

EFEKTIVITAS EKSTRAK AKAR TAGETES (Tagetes sp.) UNTUK PENGENDALIAN NEMATODA PURU AKAR (Meloidogyne spp.)

Jurnal HPT (Hama Penyakit Tumbuhan), 2020
Tujuan dari penelitian ini adalah untuk mengetahui pengaruh ekstrak akar tagetes dalam daya hambat tetas telur dan mortalitas juvenil II Meloidogyne spp. serta memperoleh nilai Median Lethal Concentration (LC50) dan Median Lethal Time (LT50) ekstrak akar
Isna Kartika Wati, Bambang Tri Rahardjo, Hagus Tarno   +2 more
doaj  

Predicting oxygen thresholds of marine taxa to improve ecological forecasts

Ecography, EarlyView.
Species' ranges are shifting in response to increasing temperature and decreasing oxygen in coastal oceans. Predicting these shifts is limited by information on physiological oxygen thresholds and how they depend on temperature. Here we collate laboratory‐derived measurements of a common oxygen threshold, pcrit, for 148 animal species that span six ...
Timothy E. Essington, James T. Thorson, Curtis Deutsch   +2 more
wiley   +1 more source

Comparing the environmental impacts and toxicity of laundry detergents with soapnuts and other tree-based natural surfactants [PDF]

The Holistic Approach to Environment
The extensive production of petroleum-based synthetic detergents worldwide presents a huge challenge to sustainability and environmental safety. Efforts are being made to find alternatives from the nature.
Archana Waran, Syamkumar Reghunandan Pillai, Swati Kulkarni, Preethy Chandran   +3 more
doaj   +1 more source

Dominant negative phenotype of Bacillus thuringiensis Cry1Ab, Cry11Aa and Cry4Ba mutants suggest hetero-oligomer formation among different Cry toxins. [PDF]

, 2011
Background - Bacillus thuringiensis Cry toxins are used worldwide in the control of different insect pests important in agriculture or in human health. The Cry proteins are pore-forming toxins that affect the midgut cell of target insects.
Bakker, P., Bravo, A., Carmona, D., Maagd, R.A., de, Munoz-Garay, C., Perez, C., Portugal, L., Rodriguez-Almazan, C., Soberon, M.   +8 more
core   +4 more sources

Cytotoxicity of 19 Pesticides in Rainbow Trout Gill, Liver, and Intestinal Cell Lines

Environmental Toxicology and Chemistry, EarlyView.
Abstract The rainbow trout gill cell line (RTgill‐W1), via test guideline 249 of the Organisation for Economic Co‐operation and Development, has been established as a promising New Approach Methodology, although to advance confidence in the method more case studies are needed that: 1) expand our understanding of applicability domains (chemicals with ...
Sophie Emberley‐Korkmaz, Krittika Mittal, Na'im Temlock, Jessica Head, Niladri Basu   +4 more
wiley   +1 more source

Patogenesitas blastospora dan konidia Lecanicillium lecanii Zare & Gams terhadap Helopeltis bradyi Waterhouse (Hemiptera: Miridae)

Jurnal Entomologi Indonesia
Helopeltis bradyi, merupakan salah satu hama perkebunan teh yang menyebabkan kerusakan hingga penurunan hasil produksi tanaman. Cendawan Lecanicillium lecanii sebagai musuh alami merupakan pengendalian alternatif yang telah diteliti untuk menekan ...
Authors Ahmad Alwi Azhari, Rully Anwar, Dewi Sartiami, Samsudin Samsudin   +3 more
doaj   +1 more source

Toxicity of three comercial tannins to the nuisance invasive species Limnoperna fortunei (Dunker, 1857): implications for control [PDF]

, 2011
Adding biocides to water is one strategy to control macrofouling organisms. A natural biocide that helps to prevent/control macrofouling of Limnoperna fortunei (Dunker, 1857) on human installations is one way to minimize environmental impacts of ...
Bulus Rossini, Gustavo Daniel, Darrigran, Gustavo Alberto, Pereyra, Patricio Javier   +2 more
core