PCA EXAM QUESTIONS AND ANSWERS 2024

how long is a nematode .25mm - 12 mm nematodes must shed what during development cuticle root lesion nematodes can be extracted from the soil by flowtitity what does a nematode look like long and cylindrical the nematode esophagus consists of what 3 regions interior, midrange and posterior what group of nematodes are non-veriform cist nematodes the nematode cuticle acts as what an excretatory system what environmental factor determines the gernerational period of a plant parasitic nematode temperature marine nematode species comprise what percent of all nematodes 50% .... reducing nematode populations sedentary endo-parasites spiral nematode gets its name how by appearing to be curled up when viewed microscpoically what is the genus of lesion nematodes pratylenchus what root lesion nematode prays on potato crops in CA? pratylenchus vulnus the most economical important cyst nematode in CA is? heterodera cruciferae meloidogyne nematodes are commonly referred to as? Root knot nematodes root knot nematodes emerge from their egg as? 2nd stage juveniles which female nematode piles its eggs in a mass root knot nematode a sedentary endoparasite life cycle stage that typically hatches from the egg 2nd stage juvenile which stage juveniles of the following nematodes types are well suited for survival in unfavorable environmental conditions pratyienchus in non-host conditions, the time it takes for root-knot nematodes to starve to death is? 3-4 years after applying a nematicide to a crop, the nematode population might be? either higher, lower, or the same as before treatment the distribution of root nematodes of genus Paratrichodorus is mainly influenced by? soil texture the distribution of Sugar beet cyst nematode is limited in CA by? none of the above if there is a root-knot nematode problem on a crop that was formerly planted to alfalfa, it is most likely cause by? Meloidogyne hapla the root-knot nematode that is known to parasitize commercially grown cotton in CA? Meloidogyne incognita spread of ..... in Ca is related to? movement of infested propagative plant material .... distribution of the species in CA probably reflects movement of infected plant material garlic cloves when should you was farm equipment to minimize nematode spread prior to movement from the area that might be infested movement of nematodes from field to field is facilitated by? the ability to survive transportation by soil moving operations Radopholus similis and ... have been intercepted most often during CA food and ag inspections of imported ornamentals where in field and vegetable crops is the highest concentration of nematodes the rhizosphere ... are hosts for what species of root-knot nematodes all of the above which nematode is likely to cuase problems on alfalfa in CA? Ditylenchus dipsaci which nematode is most likely co cause problems on cotton in CA? .... is often the cause of problems in ? sugar beets which nematode is most likely to cause problems on lilies in CA? Pratylenchus ... predicates which crop? dicondra which of the following computerized resources is not likely to help you determine what nematode affects a crop Encarta which of the following horticultural crop are most likely to host foliar nematodes strawberries stem and bulb nematodes infect such crops as alfalfa Grapevines compared to most above ground... symptoms of nematode damage are nonspecific