Potato cyst nematodes

Solanoeclepin A (39), a natural hatching agent of potato cyst nematodes, possesses a seven-membered ring in a complex pentacyclic framework. Hiem-stra and coworkers achieved the synthesis of several analogs 42 containing the... 

Walsh, J.A., Lee, D.L. and Shepherd, A.M. (1983) The distribution and effect of intracellular rickettsia-like micro-organisms infecting adult males of the potato cyst nematode, Globodera rostochiensis. Nematologica 29, 227-239. 

Jones, J.T., Curtis, R.H., Wightman, P.J. and Burrows, P.R. (1996) Isolation and characterization of a putative collagen gene from the potato cyst nematode Globodera pallida. Parasitology 113, 581—588. 

Buskov S, Serra B, Rosa E, Sorensen H and Sorensen J C (2002), Effects of intact glucosinolates and products produced from glucosinolates in myrosinase-catalyzed hydrolysis on the potato cyst nematode (Globodera rostochiensis Cv Woll) , J Agric Food Chem, 50, 690-695. 

Three or four years is the usual recommended minimum for a crop rotation, but it can certainly be longer. If you know that your soil has a serious, persistent problem, such as potato cyst nematode, onion white rot, or clubroot, you may need a much longer rotation to grow susceptible crops with any success. 

The possible relationship between the glyco-alkaloid content of the potato and the resistance to the potato cyst nematode has been studied, with some conflicting results being obtained.54 A study on the effect of glyco-alkaloids on the potato leafhopper has been reported.55... 

Nematicidal Properties. Crop damage by plant parasitic nematodes is estimated to amount to around 20% of the world s crop production causing serious economic damage. Experiments with 2,5-dideoxy-2,5-imino-D-mannitol (DMDP 3) have revealed that potato cyst nematodes were considerably damaged in the presence of this compound. Its potential as a foliar spray, soil drench and seed coating has been suggested. Not clear, as yet, is DMDP s mode of action in this context [222]. 

The compound on the left gave 87% control of hatching at 54 /Ug/L. That on the right stimulated hatching at as low as 10-12 G/L. A potato cyst nematode, normally controlled by carbamates, organophosphates, or methyl bromide, can be controlled by trans- 1,3-diphenylpropenone (11.18), which kills the nematodes as well as inhibits hatching. It has low oral toxicity (to mice) and low phytotoxicity.105... 

Uziel A, Sikora RA. Use of non-target isolates of the entomopathogen Verticillium lecanii (Zimm.) Viegas to control the potato cyst nematode, Globodera pallida (Stone). Nematologica 38 123-130, 1992. 

Eco-Chemical Control of the Potato Cyst Nematode by a Hatching Stimulator from Solanaceae Plants... 

Hatching Stimulator, Hatching Synergist, Potato Cyst Nematode, Globodera rostochiensis, Heterodera glycines. Tomato Root Diffusate... 

Solanoeclepin A (212) is the most active natural hatching agent of potato cyst nematodes (PCN), showing activity at nanomolar concentration. However, the unavailability of the natural product in useful quantities from natural sources and the unique structure needed to develop an environmentally benign... 

Structure with nine chemical steriocentres. The compound is released from roots of young potato, Solarium tuberosum. Biological activity tests demonstrate that synthetic derivatives of the compound induce premature hatching of potato cyst nematode, Globodera pallida, juveniles and therefore may have the potential to be used as an enviromnentally compatible strategy for pest control (Netherlands Organization For Scientific Research, 2001). 

Stunted growth. Nematodes such as potato cyst nematode and stem nematodes... 

Legislation has been successful to date in the UK at stopping the introduction of Colorado beetle and potato flea beetle. Land growing potatoes for certified seed production must officially have no potato cyst nematodes. 

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