Describe a program designed to prevent an outbreak of an insect or mite population in your greenhouse
What will be an ideal response?
1) Sterilize benches, tools, and plant containers before use; 2) use new
growing medium or pasteurize growing medium; 3) purchase clean plant material;
4) inspect all incoming plant material for insect and/or mite pests and apply
pesticides (insecticides and miticides) if necessary; 5) remove all weeds from
within and around greenhouses; and 6) become familiar with those plants that are
highly-susceptible to insect and mite pests.
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The type of jack that is operated by the pressure of an enclosed liquid is the _____ jack.
a. screw b. ratchet c. hydraulic d. electric
In general, air-source heat pumps are sized to meet:
A) The sum of the building heating and cooling load. B) The building cooling load. C) The building heating load. D) Whichever is largest, the cooling load or the heating load.
A serial bus that does not use differential signals is ________
A) RS-485 B) CAN C) RS-422 D) RS-423
The term ____ means not connected to ground or a conductive body that extends the ground connection.
What will be an ideal response?