+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Evaluation of selected crabapple cultivars for insect resistance

, : Evaluation of selected crabapple cultivars for insect resistance. Journal of Environmental Horticulture 11(4): 171-175

Twenty-four cultivars of Malus spp. were evaluated for resistance to naturally occurring insect pests at replicated plantings in Detroit, Lansing, and Cadillac, Michigan. 'Adams,' 'Candied Apple,' and 'Sugar Tyme' crabapples were the most resistant to defoliation by gypsy moth, fall cankerworm, and eastern tent caterpillar. 'Sugar Tyme,' in particular, was almost untouched by gypsy moth or fall cankerworm (less than 1.3% defoliation). These data must be interpreted cautiously, because previous research has shown that gypsy moth larvae are attracted to the largest Malus trees in a planting, regardless of cultivar. Two cultivars, 'Robinson' and 'Red Jewel,' were highly resistant to rose chafer and apple-and-thorn skeletonizer damage. The fact that neither of these were particularly resistant to gypsy moth or cankerworm suggests a different mechanism of resistance for defoliators and skeletonizers.


Other references

Gent, M.J.; Fradsham, S.; Whyte, G.M.; Mayland, C.R., 2016: What influences attitudes towards clinically assisted hydration in the care of dying patients? A review of the literature. An equivocal evidence base on the use of Clinically Assisted Hydration (CAH) in the last days of life presents a challenge for clinicians. In an attempt to provide clarity, the General Medical Council (GMC) has produced reasoned guidelines which i...

Anonymous, 1956: FAT ABSORPTION in man. Nutrition Reviews 14(7): 200-201

Brocchi, P., 1886: Traite de Zoologie agricole comprenant des e1ements de Pisciculture, d'Apiculture, de Sericulture, d'Ostreiculture, &c. The Mollusca of France in their economic relations are briefly treated by BROCCHI, and ostreiculture somewhat more fully.

Okita K.; Kodama T., 1977: Early lesions and development of primary hepato cellular carcinoma in man. Gastroenterologia Japonica 12(1): 83

Parent, V.; Popitean, L.; Loctin, A.; Camus, A.; Manckoundia, P., 2014: Gastric Dilation due to a Neuroleptic Agent in an Elderly Patient: A Case Report. Neuroleptics may cause side effects, some of which are little known. We describe here a case of gastric dilation related to treatment with a neuroleptic in an elderly man. To our knowledge, such a case has never been reported in the literature. A...

Leavor, R.O., 1993: Mercury spillage. British Dental Journal 174(2): 55-55

Nielsen, N.O.; Sautter, J.H.; Stevens, J.B.; Hart, B.L., 1965: Attempts to produce edema disease of swine experimentally with hemolytic Escherichia coli. Extracts or whole cell fractions of strains of Escherichia coli commonly associated with edema disease were inoculated into 102 pigs. Instead of developing edema disease, the pigs developed a syndrome characteristic of endotoxin shock.

DiFiglia, M.; Aronin, N.; Martin, J.B., 1982: Light and electron microscopic localization of immunoreactive Leu-enkephalin in the monkey basal ganglia. Journal of Neuroscience 2(3): 303-320

Warr, E.; Aguilar, R.; Dong, Y.; Mahairaki, V.; Dimopoulos, G., 2007: Spatial and sex-specific dissection of the Anopheles gambiae midgut transcriptome. Background: The midgut of hematophagous insects, such as disease transmitting mosquitoes, carries out a variety of essential functions that mostly relate to blood feeding. The midgut of the female malaria vector mosquito Anopheles gambiae is a ma...

Greenspan, J.A.; McMahon, S.A.; Chebet, J.J.; Mpunga, M.; Urassa, D.P.; Winch, P.J., 2014: Sources of community health worker motivation: a qualitative study in Morogoro Region, Tanzania. There is a renewed interest in community health workers (CHWs) in Tanzania, but also a concern that low motivation of CHWs may decrease the benefits of investments in CHW programs. This study aimed to explore sources of CHW motivation to inform pr...