- Average annual rainfall in Davis is approximately ______ inches.
- Poblano peppers are called _______ when dried.
- The pH of Davis water is (circle one): alkaline neutral acidic
- Where does Davis water come from (yeah, I know--"the tap"; flippant answers don't count!)?
_______________________________
- Most of our important fruit species, as well as many ornamentals, are in the genus ________.
- What is ET (as in "the ET rate")? _______________________________________________
- How are seedless grapes propagated? ____________________________________________
- True or False? An "indeterminate" tomato plant grows to a certain size and then stops.
- The insect which cuts semi-circular holes out of the sides of leaves is the ______________________.
- If you pound a nail in the trunk of a tree, and the tree grows three feet a year, how many feet higher on the trunk will the nail be in ten years? ______________________
- Which of the following plant genera have species which are native to Davis?
a. Ceanothus species b. Arctostaphylos species c. Quercus species d. Sequoia species
- Which of the following is not botanically a fruit?
a. persimmon b. tomato c. rhubarb d. fig
- True or False? Bougainvillea, the flowering vine, is from Bougainville Island.
- True or False? Evergreen trees never drop their needles or leaves.
- In what form do most plants take up nitrogen?
a. ammonia b. organic c. nitrate d. urea
- Which of the following are not directly harmful to plants in our area?
a. aphids b. ants c. gophers d. snails and slugs
- Rank the following types of citrus trees from MOST to LEAST cold-hardy:
a. navel orange b. kumquat c. Eureka lemon d. Mexican lime
- Define LD50 (hint: it relates to pesticides). ____________________________________________
_______________________________________________________________________________
- Name two years in which we had severely freezing weather in Davis. __________ ___________
- Parsley and hollyhocks are examples of (circle one): annuals perennials biennials
- A new product which kills snails and slugs and is harmless to pets is made from ______________.
- What do the VFNT on tomato variety labels refer to? ________________, ___________________, _______________, _________________________.
- What are the trees planted along the street on Elmwood Drive? ______________________
- Warren Roberts has been superintendent of the UC Davis Arboretum since _______.
- To what plant family does the smelly-flowered plant which bloomed recently in the Botanical Conservatory on campus belong? ______________
- Deficiency of ___________ is common in many plants in Davis, characterized by yellowing of the leaves of new growth between the veins while the veins remain green.
- Most tomato varieties drop blossoms without setting fruit when the temperature is above ____ degrees F.
- Our climate, with dry warm summers and cool wet winters is sometimes called a ____________ climate because of its similarity to that region.
- From what regions do the following plants come?
a. Camellia japonica ________b. Lagerstroemia indica _______c. Celtis australis ________ d. Celtis sinensis __________
- Which of the following holiday plants is NOT poisonous?
a. English ivy b. Mistletoe c. Poinsettia d. Holly
- The tobacco hornworm (also known as the tomato hornworm) turns into a ______________ moth.
- The pest which is dripping sticky goop onto Bob Dunning's driveway is the ____________________.
- Which tree is used in production of silk (circle one): Floss-silk tree Mulberry Silk tree
- Name a bird which damages plants or crops in this area (hint: there is more than one correct answer!)
__________________________________
- True or False? Roses are native to the southern hemisphere.
- Circle the two plants which are most closely related (allergy sufferers take note!):
40. Which plant in #39 contains a word in its name which is not derived from Latin? ___