Study on the Repellent Effects of Different Grass Species on Raspberry Drosophila melanogaster

Large leaf mint(Agastache rugosus),white clover(Trifolium repens),spearmint(Mentha spicata),tall fescue(Festuca elata),orchardgrass(Dactylis glomerata)and alfalfa(Medicago sativa)were selected to perform sod culture,and the repellent effects of different grass species on adult raspberry Drosophila melanogaster were studied,so as to provide a scientific basis for grass cultivation in the control of raspberry fruit fly.The study showed that spearmint and big leaf mint had strong repellent effects on raspberry D.melanogaster,with repellent effects reaching 81.25%and 72.73%,respectively,and could be promoted as the main plant varieties in grassing orchards;and the next was alfalfa and white clover,which had the average repellent effects of 50.57%and 34.94%on D.melanogaster,respectively,and could be used as nectar plants to supplement the ecosystem of the sod culture orchards.

Huntsman Textile Effects raises the bar for non-fluorinated durable water repellents

PHOBOTEX~? RSY durable water repellent delivers best-in-class performance to support the industry's shift to non-fluorinated formulations Continuing to lead the textile sector’s transition to more sustainable and eco-friendly business models,Huntsman Textile Effects has introduced the new PHOBOTEX~?RSY non-fluorinated durable water repellent(DWR)that raises the standard for repellency especially on high-performance synthetic textiles.This new product will allow brands and retailers to meet global demand for eco-friendly clothing that require extreme rain-and stain-protection.

Exposition of Pecan Black Aphid(Melanocallis caryaefoliae)to Creseote Bush(Larrea tridentata)Extracts

Creseote bush-based (Larrea tridentata Cov.) botanical insecticides have not been evaluated on pecan black aphid (Melanocallis caryaefoliae D.), the purpose of this research was to test the insecticide and/or repellent effect of the creseote-bush raw extracts on this insect. Ethyl acetate, methanol and water as solvents, the stem and leaf organs were tested at concentrations of 0.5%, 1%, and 2%, as well as their witnesses and the interactions of each. Extract application was made by immersion during 10 s and the incubation was made in a wet chamber, making observations at 24, 48 and 72 hours after the treatment was applied. Mortality was evaluated by touching the aphid and seeing it did not move, while for repellence the insects found outside of the leaf were taken into account. A higher mortality effect was observed at a 1% concentration for the three solvents on the leaf extracts, being the methanol one the most efficient, on the other hand the stem extracts had the same behavior, presenting the higher mortality in the ethyl acetate extracts at 0.5% and 2% both at 72 hours. On the other hand the higher repellent effect presented at 24 hours in stem extracts, with a variation in the leaf extracts.