Honey dew

We may add two further interesting observations2 noted with radioactive O.M.P.A. The first is that examination of the transpired material from plants, the roots of which had absorbed the insecticide, failed to show that any radioactive material had been given off. The second observation is that aphids killed by feeding on such plants, and also the honey dew which they produced, were found to be radioactive. 

MANNA — i.e., Dew Fallen from Heaven. A Species of Balsam, the Product of the Air. Also a Sweetness Extracted from many Substances. Otherwise, Honey Dew, Dosomeli, Pure Honey, Melligo, Saliva of the Constellations. 

Leafhoppers are leaf-feeding herbivores that use their sucking mouthparts to pierce the tissues of plants and feed on their juices, in some cases causing economically important damage to crop species. Leafhoppers have relatively specific feeding habits, and they only occur on particular species of plants, or closely related groups. Some species of leafhoppers emit honeydew from their anus. Honey dew is a solution rich in sugars, similar to that emitted by the closely related aphids. 

Leaves crinkled or curled with a sticky coating on undersides. Cause Aphids. These tiny, sucking insects secrete a sugary honey-dew that may attract ants. Isolate affected plants. Remove heavily infested leaves and stems. Wipe insects off stems with a cotton swab dipped in warm soapy water. Spray with insecticidal soap. (Do not use soap on ferns.)... 

Leaves with dark, sooty blotches. Cause Sooty mold. This fungus lives on the honey-dew excreted by aphids, mealybugs, and scales. Treat the plant for the insect infestation. Then clean the foliage with warm soapy water and rinse. See Leaves and Stems with white cottony patches, Leaves pale and discolored tiny brown bumps on undersides and stems." and Leaves crinkled or curled with a sticky coating on undersides above for information on controlling these insects. 

Leaves wrinkled and discolored. Cause Aphids, These Vm - /s", pear-shaped, green, pink, black, dusty gray, or white fluffy-coated insects cluster on leaves, buds, and young stems. As they feed, they drop sticky honey-dew on lower leaves. Sooty mold fungi often grow on the honeydew on aphid-infested foliage —as well as on the plants growing beneath them see "Leaves with black coat-... 

Damage A major pest of pears and quinces, psyllas suck plant juices, causing leaves to yellow from the toxic saliva honey-dew seeretions support growth of sooty... 

On small plants, you can Wipe the coating off with a damp cloth. The best treatment is to control the insects producing the honey-dew (see pages 269,304, and 320-21 for aphid, mealybug, and scale controls, respectively). If the plants do not have an insect problem, the honeydew may be from an overhanging plant. 

Coiorado potato beetie parasite (Edovum puttier ) Parasitizes eggs of Colorado potato beetle. Best effect seen against second generation of potato beetles. Become established faster when there is a source of honey-dew from aphids nearby Experimental not hardy in northern areas. %... 

The field inoculation of rye with Claviceps can be achieved by using an artificial spore suspension similar to natural honey dew suspension. A sterilized solution of 34 to 66 percent beet sugar is most effective. Maple syrup, corn syrup and honey all proved ineffective. 

Beet sugar solution (34 to 66%) met all the following criteria of natural honey dew suspension. According to Ralph W. Lewis ... 

Artificial Honey Dew-Preparation of Spore Suspension in Quart Canning Jars (Method by Hayes)... 

Artificial honey dew suspension is stored at -18 to 0° C. 1.75 quarts of suspension is produced from each quart of culture. 

From the conidia ( perfect or sphacelial stage, the honey-dew of rye infection). 

Table III. Rainfall at Honey dew 2 WSW Station, California, on November 7-8, 1969...

Competition between and Na at the PM surface of vesicles from Honey Dew melon. Adsorbed Ca is expressed as ions per intrinsic charged site on the PM surface. Data are from Yermiyahu et al. (1999)... 

Element Nectar honey (n = 18) Mixed nectar and honey dew honey (n = 29) Honey dew honey (n = 35) ... 

Wackers EL. Suitability of (extra-) floral nectar, pollen, and honey dew as insect food sources. In Wackers FL, Van Rijn PCJ, Bruin J, editors. Plant-Provided Food for... 

Givovich, a., S. Morse, H. Cerda, H. M. Niemeyer, S. D. Wrat-TEN, and P. J. Edwards, Hydroxamic acid glucosides in honey-dew of aphids feeding on wheat, J. Chem. Ecol., 18, 841-846 (1992). 

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