Which of the following microbe is the source of first antibiotic?
Penicillium notatum
Staphylococci
Aspergillus niger
Bacillus brevis
Bordeaux mixture was first used in:
Consider the following four measures $(I-I V)$ that could be taken to successfully grow chickpea in an area where bacterial blight is common.
$I.$ Spray with Bordeaux mixture.
$II.$ Control of the insect vector of the disease pathogen.
$III.$ Use of disease-free seeds only.
$I V$. Use of varieties resistant to the disease.
Which of the above measures can control the diseases?
Herbicticide derived from urea is
Which of the following pesticides is an acetylcholinesterase inhibitor
Leaves of which plant can sharpen the memory?